Comments (4)
Hi @marcelpi, thanks for logging the issue.
You are right that achromatic colors in lch()
and oklch()
will not have an h
component (as technically it can be any value), so when serializing to CSS you need to account for that, or alternatively use culori.formatCss(lchColor)
.
A separate issue is that interpolatorSplineMonotone
doesn't seem to notice that the hue is undefined for some of the colors and uses it in computations, resulting in NaN
. This is worth investigating.
from culori.
Thanks for your answer, @danburzo.
I think that the h component can be interpolated as any other without omitting it, or just default it to 0.
Other spaces consider hsl(12 0% 0%) and hsl(323 0% 0%) as black even though there is a hue.
But I also understand your perspective, my guess is this would also solve the interpolatorSplineMonotone issue.
from culori.
In Culori, an undefined
value for a component denotes a missing component, which in CSS can be specified by the author with the none
keyword. For example, { mode: 'lch', l: 50, c: 50 }
is represented in CSS as lch(50% 50 none)
.
Interpolating a color with lch(50% 50 none)
is different from interpolating it with lch(50% 50 0)
.
Here's Chrome rendering linear-gradient(to right, blue, lch(50% 50 none))
. Note that the missing hue picks its value from the blue
color.
Here is the same gradient, but with hue = 0
: linear-gradient(to right, blue, lch(50% 50 0))
.
Interpolation with missing components is described here.
I will need to investigate which conversions make the wrong assumptions and produce NaN
.
from culori.
Alright, makes sense. Thanks for clearing that out.
from culori.
Related Issues (20)
- Add to `clampChroma` option to clamp to P3 space HOT 3
- Less than perfect converting okhsl to rgb HOT 1
- Add support for WCAG3 contrast using APCA HOT 8
- formatHex returns default color when converting from LCH HOT 2
- Incorrect YIQ conversion HOT 3
- `color()` syntax: don't allow omitted components HOT 1
- Exotic `rgb()` syntaxes trip up culori.js HOT 1
- XYB color space? HOT 5
- `lch()` and `lab()` in `formatCss` has no `%` HOT 3
- Culori ESM import throws an error in Next.js production build HOT 5
- Bug in displayable() in oklch HOT 3
- culori.d.ts - Is there an updated type declaration file to use with TypeScript? HOT 1
- Implement parse-time clamping of L lab/oklab/lch/oklch
- XYB: is the Chroma from Luma adjustment correction really in the JXL implementation? HOT 2
- Library-wide handling of missing and powerless components HOT 2
- Endless loop when using a double point HOT 2
- Add RYB colors HOT 19
- mix() function, and 2d/3d counterparts
- Dead link in docs HOT 1
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from culori.