Color Harmonies and Color Spaces Used by
Olivier Messiaen in Couleurs de la cité céleste
                                                               Paul E Dworak
                                                            College of Music
                                                        University of North Texas
                                                                          Revelation. In fact, he specifically identifies in the score the colors
                          ABSTRACT                                        that he intends.
This paper explores the color spaces used by Oliver Messiaen in his       Previous research by Jonathan Bernard (1986) focused on
orchestral composition Couleurs de la cité céleste. Messiaen              associating interval complexes and the modes of limited
discussed with Claude Samuel his experience of synesthesia, which         transposition with the colors that Messiaen identifies in his scores.
is the ability of some persons to perceive colors when they hear          The present study will focus on analysis of the recorded sound of
sounds. In this work Messiaen identifies in the score the highly          the chords that he associates with colors. It will also show that
evocative colors and brilliance characteristics of gemstones              certain modes possess characteristic spectral components
suggested by scenes in the Book of Revelation, and he associates          regardless of their voicing and instrumentation.
them with the voicing and instrumentation of the chords played by
selected instruments from the orchestra that he uses in this work.                 2.     THE EXPERIENCE OF THE
Messiaen’s colors exist in a color space that corresponds with the                             SYNESTHETE
formant space of the sound of the chords that realize these colors.
Just as color models such as CIE L*a*b* define hue, saturation and        Synesthesia is the capacity of some persons to be able to experience
luminance in three dimensions, the F1 x F2 x F4 formant space of          a phenomenon with more than one sense. In the case of music, a
Messiaen’s chords also locates the same color attributes within the       listener will both hear the music and perceive patterns of colors
three dimensions defined by these formants, with hue and                  (photisms) that correspond with the sounds heard. Messiaen is,
saturation represented in the F1 x F2 plane, and luminance in the F4      presumably, one of those synesthetes who can experience a
dimension. The software application Speech Filing System is used          bi-directional sensory association. In other words, he was able to
to determine the formants of the digitized sound of the orchestral        hear the sound of colors and notate the orchestral chords that
chords that are associated with the various colors that he specifies.     corresponded with them (Messiaen, 1993).
The formant data are plotted in three dimensions with IDL
                                                                          Some synesthetes perceive photisms as spatially extended. They
Workbench visualization software, using three-dimensional
                                                                          often describe their perception as a set of patterns localized
polynomial regression. These plots identify the surfaces and their
                                                                          somewhere in space in front of them, with patterns that may move
orientations within this space that correspond with colors and color
                                                                          from left to right as the sound changes. Whether the patterns are
combinations. These data confirm that Messiaen’s colors are not
                                                                          perceived as external to the body or an internal phenomenon is
merely symbolic associations, but represent his simultaneous
                                                                          irrelevant, however, because the perception is real. It also is
perception of sound and color.
                                                                          involuntary, memorable, different for each synesthete, and
                                                                          persistent. Throughout a synesthete’s life, his or her color
                     1.     OBJECTIVE                                     association with a particular sound will not change (Roberston and
Messiaen is somewhat unique among composers with synesthesia              Sagiv, 2009).
because he not only acknowledged possessing the ability but also
                                                                          Synethetes report a variety of photisms: thin lines, thick lines,
used it explicitly to determine the harmonies and instrumental
                                                                          parallel lines, curves, circles, spirals, etc. More than one photism
textures in several of his compositions. Couleurs de la cité céleste is
                                                                          may occupy the visual scene. Scenes with multiple colors may
Messiaen’s setting of the Book of Revelation. The author of this
                                                                          occur in various parts of the visual scene and move or dance among
book describes the new holy city of Jerusalem (Rev 21:18-21):
                                                                          the photisms, or different colors may dissolve into a white
      The wall was constructed of jasper, while the city was pure         connection (Campien, 2008).
      gold, clear as glass. The foundations of the city wall were
                                                                          Messiaen specifies not only colors and color combinations, but also
      decorated with every precious stone; the first course of stones
                                                                          their texture and gem-like character (e. g. topaze jaune,
      was jasper, the second sapphire, the third chalcedony . . . .
                                                                          chrysoprase vert clair, et cristal).
Messiaen sets these highly evocative colors and textures to chords
played by selected instruments from the orchestra he uses in this                       3.    FORMANT ANALYSIS
work. His association between color and sound is not merely
                                                                          This study is based on the assumption that synesthetes who
symbolic, but is instead his notation of the sounds that he
                                                                          associate colors with sounds may base their association on their
experiences when imagining the colors of the scene from
                                                                          formant analysis of the sound. A person’s ability to understand the
meaning of a natural language is a skill that is more universal than     IDL Workbench Visualization Software was used to plot formants
the ability to comprehend the structure and harmonic organization        in three-dimensional space. Because the frequency interval or
of musical sounds. To understand language, a listener must be able       frequency ration of formants is somewhat unique for each color or
to recognize vowels. A large literature describes how listeners          color combination, plotting F1 x F2 x F4 is just as accurate as F1 x
identify vowels in any particular language based on their position in
                                                                         F2 x F3, but the former is used because it better separates colors in
a two-dimensional formant space. Except in extreme registers,
                                                                         this three-dimensional space, and in many cases F4 varies less than
vowel perception is generally independent of the fundamental
frequency produced by a speaker for any vowel, but the formant           the other formants, which establishes distinct planes for each color.
structure of vowels produced by men and women differ to a certain
degree, as do the structure of vowels in different languages.
                       4.     METHOD                                                          4000
Speech Filing System (SFS) is a speech analysis software                                      3500
application that includes routines for formant analysis. In this                              3000
research study, SFS is being used to analyze digital recordings of                            2500
                                                                                      Hertz
                                                                                              2000
the chords identified by Messiaen as associated with colors, and
                                                                                              1500
data representing the first five formants of these sounds are plotted.
                                                                                              1000
Figure 1 shows that, during the duration of a chord, the formants
                                                                                                500
vary dynamically, but only within a range that corresponds with the                                                                                                                        F5
                                                                                                     0
color or color combination. The variation of each formant can be                                                                                                                          F3
                                                                                                        e       n       t                                                                      Formant
                                                                                                   os ree            l e l et           d                                            F1
plotted in a multi-dimensional space to observe where in that space                                  R     G
                                                                                                         w/ en/V
                                                                                                                  io         o
                                                                                                                           Vi e/G
                                                                                                                                      ol         ol
                                                                                                                                                   d
                                                                                                                                                          ed         te
                                                                                                    ll o                                    e/
                                                                                                                                              G         R          hi           et
                                                                                                              e                   g                                           ol
each color falls.                                                                                Ye
                                                                                                           G
                                                                                                            r                   n
                                                                                                                             r a n/B
                                                                                                                                         lu
                                                                                                                                                  o in
                                                                                                                                                      e
                                                                                                                                                           o l d/
                                                                                                                                                                  W
                                                                                                                                                                         e/
                                                                                                                                                                           Vi
                                                                                                                          / O       e          rd         G           lu
                                                                                                                      ed          re       S a         e/           B
                                                                                                                   R            G                   ng
                                                                                                                                                 ra
                                                                                                        Color                                  O
                                                                         Figure 2: Messiaen’s colors arrange by F4.
                                                                         Figure 3: Notes of Mode 3 tightly packed and voiced in 4ths.
Figure 1: Formants at Rehearsal 75 for “bleu violet.”
In Figure 2, the average value of each formant is plotted against its
specified color or color combination. The colors are arranged by
increasing values of F4, and the order is determined both by hue
and by saturation. Although the order of the color combinations
does not correspond with a spectral ordering, clusters of certain
colors can be observed.
Figures 3 and 4 address Bernard’s consideration of how the modes
correspond with interval sets. Figure 3 consists of two voicings of
the notes of mode 3, created with Sibelius. Figure 4 show the
formant structure of the orchestral chords on the left, and of the
synthesized chords on the right. With the exception of the lowest
formant in the orchestra, some correspondence in the frequency of
formants can be observed, but the strengths of formants varies with      Figure 4: Orchestral chords using Mode 3 at Rehearsal 75+2,
the voicings.                                                            followed by the formants of the synthesized chords of Figure 2.
                 5.    COLOR MODELS                                      In all of these models, saturation increases with distance from the
                                                                         origin. Chroma is related to the purity of the hue, which can be
Many color models have been developed to specify digital color           defined by the bandwidth of the color wavelength. On Fulton’s
production. One of these is the CIE L*a*b*, which specifies              diagram, e. g., a very small area of color would have a higher
luminance values from black to white on the vertical axis, and two       chroma value than a larger area that mixed hues and saturation
pairs of complementary colors, red and green on the a* axis, and         values.
blue and yellow on the b* axis.
                                                                         Both MacEvoy’s and Fulton’s models take into account the
                                                                         nonlinear aspects of visual perception.
      +b*                                             +a*
    (Yellow)                                         (Red)
                                  L*
       -a*                                            -b*
     (Green)                                         (Blue)
Figure 5: CIE L*a*b* color model.
Bruce MacEvoy (2008) describes how this and other models may
be adapted to the artist’s selection of pigments, and suggest the        Figure 7: Fulton’s Luminance/Chrominance Diagram for Research,
following artist’s value wheel, which places specific pigments           ©2001 James Fulton.
within the three-dimensional CIE L*a*b* color space.
                                                                                 6.    MESSIAEN’S COLOR SPACE
                                                                         The preceding color models were described to provide a context for
                                                                         the discussion of Messiaen’s use of colors. In some cases, Messiaen
                                                                         specifies a single color (sardoine rouge    ), in other cases multiple
                                                                         colors (topaze jaune , chrysoprase vert clair ). Some have
                                                                         greater luminance (rose, mauve, et gris          ), others less (bleu
                                                                         saphir      ). Of course, all of the color swatches are merely
                                                                         approximations of the gems and other textures that he specifies.
                                                                         The following figures plot the F1 x F2 x F4 formant data for the
                                                                         orchestration corresponding to the specified color(s). The data
                                                                         forms a cluster of points that is plotted, for clarity, as the
                                                                         three-dimensional polynomial regression of the points. The data
                                                                         points fall within the rectangular surface and its degree of
                                                                         curvature.
Figure 6: MacEvoy’s artist’s value wheel, ©2005 Bruce MacEvoy.
James Fulton (2001) proposed a model that describes visual
perception, shown in Figure 7. The color plane in this diagram
places perceived complementary colors equidistant from the origins
of both primary axes. Consequently, the origin is not in the center of
the color plane, and the color wavelengths that are paired on these
axes are somewhat different from the CIE L*a*b* model.
Figure 8: Sardoine rouge.                                               Figure 11: Sardoine rouge, rouge / orange / or, rouge / bleu.
In Figure 8, the red color has a brownish tint. The perimeters for
                                                                                          7.    CONCLUSIONS
reds are oriented parallel to the F1 axis. Figure 9 shows the same
red, as well as blue-violet. Note that the blue component is oriented   The component pitch classes, interval spacing, and orchestration of
parallel to the F2 axis, as suggested by Figure 5.                      each of the chords that Messiaen associates with a color generate a
                                                                        formant structure that defines a surface in F1 x F2 x F4 formant
                                                                        space. Examples of these surfaces are shown in Figures 8 through
                                                                        11. Chords that might be considered “brilliant” in character
                                                                        correspond with higher F4 values. Those that have very stable
                                                                        formant structures over the duration of the chord have small surface
                                                                        areas in the F1 x F2 x F4 formant space. Chords that are more “dull”
                                                                        in character correspond with lower values of F4 and may also
                                                                        correspond with the higher luminance value of the specified
                                                                        color(s). Chords with more variable formant structures over the
                                                                        duration on the chord occupy larger surface areas in the formant
                                                                        space.
Figure 9: Sardoine rouge, bleu-violet, jaune / vert.                    The current research is a first step toward better understanding
                                                                        Messiaen’s color space. It does not provide sufficient data to show
                                                                        direct correlations between the F1 x F2 x F4 formant space and a
In Figure 10, the higher luminance of the rose and green/blue hues      perceptual space such as Fulton’s, which attempts to model visual
is reflected in the lower F4 values of these colors. Note that the      perception. It also does not explain the nonlinearities within
green/violet hues show an orientation parallel to the F1 axis, which    Messiaen’s space. The fact that it is not possible to imagine the
                                                                        specific colors and the way that they blended in the photism’s in
appears to correspond with the a* (red-green) axis of the CIE
                                                                        Messiaen’s experience of these colors makes it difficult to make
L*a*b* model. Both the green/violet and the green/blue/gold have        direct colorations between the specified colors and the formant
smaller surface areas, which suggests a higher value of chroma.         space. Nevertheless, this research demonstrates that the color /
                                                                        sound associations are not arbitrary, but do follow principles of
                                                                        color theory and are related to existing color models. Clearly,
                                                                        Messiaen’s ability to associates sounds with colors in a way that
                                                                        maps formant space with color space demonstrates that the unity of
                                                                        his perception with the two senses and the consistency of his
                                                                        sensory associations.
                                                                                           8.    REFERENCES
                                                                        1. Bernard, J., “Messiaen’s Synaesthesia: the Correspondence
                                                                           Between Color and Sound Structure in His Music.” Music
                                                                           Perception, IV, 1986.
Figure 10: Sardoine rouge, rose / mauve, vert / bleu / or, vert /       2. Campien, C., The Hidden Sense: Synesthesia in Art and
violette.                                                                  Science, MIT Press, Cambridge, MA, 2008.
                                                                        3. Fulton, J. T., Processes in Biological Vision, Vision Concepts,
Figure 11 shows the orientation of related colors. Rouge, taché de         Corona Del Mar, CA, 2008, Available on the Internet:
bleu, the topmost surface, has orientations of both red and blue, and      URL:http://neuronresearch.net/vision/.
the curvature of blue-violet that was seen in Figure 9.
                                                                        4. MacEvoy, B., Color Theory, 2008, Available on the Internet:
                                                                           URL:http://www.handprint.com/HP/WCL/wcolor.html.
                                                                        5. Messiaen, O., Music and Color: Conversations with Claude
                                                                           Samuel, Amadeus Press, Portland, OR, 1993.
                                                                        6. Robertson, L. C. and Sagiv, N., eds., Synesthesia: Perspectives
                                                                           from Cognitive Neuroscience, Oxford University Press, New
                                                                           York, 2005.