#C0CB33
Closest named color: Mustard Yellow (#D2BD0A). oklch(80.8% 0.166 113.8), rgb(192, 203, 51).
Aa
Black text reads best on this color (11.83:1).
About this color
#C0CB33 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.166 and its hue 114°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.039 away. Black text reads best on it, at 11.83:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.83:1 |
| White text | 1.77:1 |
Values
| HEX | #C0CB33 |
| RGB | rgb(192, 203, 51) |
| HSL | hsl(64, 60%, 50%) |
| OKLCH | oklch(80.8% 0.166 113.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #C0CB33 | 1.77:1 | Fails | Lc -36.5 | Non-text elements, placeholder text |
| Black text on #C0CB33 | 11.83:1 | AAA | Lc 71.3 | Content text, not long reading |
| #C0CB33 text on white | 1.77:1 | Fails | Lc 32.5 | Non-text elements, placeholder text |
| #C0CB33 text on black | 11.83:1 | AAA | Lc -70.1 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#F5F7E7
oklch(97% 0.021 112.6)
-
Step 100
100
#E9EECA
oklch(93.6% 0.048 113.7)
-
Step 200
200
#D8E099
oklch(88.4% 0.092 113.5)
-
Step 300
300 (this color)
#C0CB33
oklch(80.8% 0.166 113.8)
-
Step 400
400
#A1AA00
oklch(70.7% 0.158 113.5)
-
Step 500
500
#8A9200
oklch(63.2% 0.142 113.6)
-
Step 600
600
#737A00
oklch(55.5% 0.124 113.7)
-
Step 700
700
#616700
oklch(49.2% 0.11 113.7)
-
Step 800
800
#4F5400
oklch(42.7% 0.096 113.7)
-
Step 900
900
#424600
oklch(37.8% 0.084 113.4)
-
Step 950
950
#262900
oklch(26.9% 0.06 113.9)
#C0CB33 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #DAC10D | 0.041 |
| Deuteranopia (no green cones) | #DAC440 | 0.043 |
| Tritanopia (no blue cones) | #CDBFAE | 0.146 |
| Achromatopsia (no color) | #C2C2C2 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C0CB33
#C0CB33
oklch(80.8% 0.166 113.8)
- #C3B3FF
#C3B3FF
oklch(80.7% 0.107 293.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #C0CB33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.039
- Yellow Green #9ACD32 ΔE 0.049
- Olive Yellow #C2B709 ΔE 0.050
- Pea #A4BF20 ΔE 0.053
- Slime Green #99CC04 ΔE 0.056
- Dark Yellow #D5B60A ΔE 0.056
- Pale Olive Green #B1D27B ΔE 0.057
- Mustard #CEB301 ΔE 0.060
Use #C0CB33 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.