#CBB91B
Closest named color: Mustard (#CEB301). oklch(77.7% 0.158 102.1), rgb(203, 185, 27).
Aa
Black text reads best on this color (10.49:1).
About this color
#CBB91B is a medium-light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.158 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard (#CEB301), ΔE 0.015 away. Black text reads best on it, at 10.49:1.
| Hue family | Yellows |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Mustard (#CEB301) |
| Black text | 10.49:1 |
| White text | 2.00:1 |
Values
| HEX | #CBB91B |
| RGB | rgb(203, 185, 27) |
| HSL | hsl(54, 77%, 45%) |
| OKLCH | oklch(77.7% 0.158 102.1) |
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 #CBB91B | 2.00:1 | Fails | Lc -43.0 | Non-text elements, placeholder text |
| Black text on #CBB91B | 10.49:1 | AAA | Lc 65.3 | Content text, not long reading |
| #CBB91B text on white | 2.00:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #CBB91B text on black | 10.49:1 | AAA | Lc -63.8 | 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
#F8F6E6
oklch(97% 0.021 101)
-
Step 100
100
#EFECC9
oklch(93.6% 0.046 103.2)
-
Step 200
200
#E4DC98
oklch(88.5% 0.088 102.3)
-
Step 300
300 (this color)
#CBB91B
oklch(77.7% 0.158 102.1)
-
Step 400
400
#B3A300
oklch(70.7% 0.148 102.4)
-
Step 500
500
#9A8B00
oklch(63% 0.132 101.8)
-
Step 600
600
#817500
oklch(55.6% 0.117 102.3)
-
Step 700
700
#6D6200
oklch(49.1% 0.103 101.8)
-
Step 800
800
#595000
oklch(42.7% 0.089 102)
-
Step 900
900
#4A4300
oklch(37.8% 0.079 102.7)
-
Step 950
950
#2C2700
oklch(27% 0.057 102.1)
#CBB91B 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) | #CBB300 | 0.015 |
| Deuteranopia (no green cones) | #D1BB2B | 0.013 |
| Tritanopia (no blue cones) | #DBAB9E | 0.144 |
| Achromatopsia (no color) | #B7B7B7 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBB91B
#CBB91B
oklch(77.7% 0.158 102.1)
- #ABADFF
#ABADFF
oklch(77.7% 0.116 282.3)
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 #CBB91B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard #CEB301 ΔE 0.015
- Dark Yellow #D5B60A ΔE 0.016
- Olive Yellow #C2B709 ΔE 0.016
- Mustard Yellow #D2BD0A ΔE 0.016
- Burnt Yellow #D5AB09 ΔE 0.037
- Muddy Yellow #BFAC05 ΔE 0.040
- Mustard Green #A8B504 ΔE 0.054
- Goldenrod #DAA520 ΔE 0.055
Use #CBB91B 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.