Browsers serialize hwb(0 -10 0) with rgb(255, 0, 0). The conversion from hwb to rgb returns [1, -0.1, -0.1].

Where is clipping now specified in the specification?

I presume it should still apply otherwise resolving infinity to 255 after the conversion to rgb() would not make sense. Should it apply before or after the conversion to rgb()? Should it only apply when it is not mixed with another color?

Whiteness/blackness was clipped:

• at parse time before 97d0f58
• at computed-value time before 52c454f

Note: I asked a similar question for saturation > 100 in hwb() but the issue is closed.