#CBC803
Closest named color: Mustard Yellow (#D2BD0A). oklch(80.9% 0.175 108.6), rgb(203, 200, 3).
Aa
Black text reads best on this color (11.80:1).
About this color
#CBC803 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.175 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.030 away. Black text reads best on it, at 11.80:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.80:1 |
| White text | 1.77:1 |
Values
| HEX | #CBC803 |
| RGB | rgb(203, 200, 3) |
| HSL | hsl(59, 97%, 40%) |
| OKLCH | oklch(80.9% 0.175 108.6) |
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 #CBC803 | 1.77:1 | Fails | Lc -36.6 | Non-text elements, placeholder text |
| Black text on #CBC803 | 11.80:1 | AAA | Lc 71.3 | Content text, not long reading |
| #CBC803 text on white | 1.77:1 | Fails | Lc 32.6 | Non-text elements, placeholder text |
| #CBC803 text on black | 11.80:1 | 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
#F6F7E5
oklch(97.1% 0.024 109.4)
-
Step 100
100
#ECEDC7
oklch(93.6% 0.05 108.6)
-
Step 200
200
#DEDF93
oklch(88.6% 0.097 108.9)
-
Step 300
300 (this color)
#CBC803
oklch(80.9% 0.175 108.6)
-
Step 400
400
#A9A700
oklch(70.7% 0.153 108.9)
-
Step 500
500
#918F00
oklch(63.1% 0.137 108.8)
-
Step 600
600
#7A7800
oklch(55.6% 0.12 108.6)
-
Step 700
700
#666500
oklch(49.1% 0.107 109.1)
-
Step 800
800
#545200
oklch(42.7% 0.092 108.1)
-
Step 900
900
#464400
oklch(37.6% 0.081 107.8)
-
Step 950
950
#292800
oklch(26.9% 0.058 108.3)
#CBC803 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) | #DABF00 | 0.030 |
| Deuteranopia (no green cones) | #DCC525 | 0.029 |
| Tritanopia (no blue cones) | #DBBAAA | 0.158 |
| Achromatopsia (no color) | #C2C2C2 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBC803
#CBC803
oklch(80.9% 0.175 108.6)
- #BEB6FF
#BEB6FF
oklch(80.9% 0.102 288.9)
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 #CBC803, closest first.
No curated palette has a color within ΔE 0.04 of #CBC803.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.030
- Olive Yellow #C2B709 ΔE 0.048
- Dark Yellow #D5B60A ΔE 0.048
- Mustard #CEB301 ΔE 0.054
- Pea #A4BF20 ΔE 0.061
- Yellow Green #9ACD32 ΔE 0.062
- Golden #F5BF03 ΔE 0.066
- Slime Green #99CC04 ΔE 0.066
Use #CBC803 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.