#CBB63C
Closest named color: Mustard (#CEB301). oklch(77.3% 0.139 99.3), rgb(203, 182, 60).
Aa
Black text reads best on this color (10.29:1).
About this color
#CBB63C is a medium-light, moderately saturated yellow. In OKLCH its lightness is 77%, its chroma 0.139 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard (#CEB301), ΔE 0.020 away. Black text reads best on it, at 10.29:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.139) |
| Temperature | warm |
| Nearest name | Mustard (#CEB301) |
| Black text | 10.29:1 |
| White text | 2.03:1 |
Values
| HEX | #CBB63C |
| RGB | rgb(203, 182, 60) |
| HSL | hsl(51, 58%, 52%) |
| OKLCH | oklch(77.3% 0.139 99.3) |
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 #CBB63C | 2.03:1 | Fails | Lc -44.1 | Non-text elements, placeholder text |
| Black text on #CBB63C | 10.29:1 | AAA | Lc 64.4 | Content text, not long reading |
| #CBB63C text on white | 2.03:1 | Fails | Lc 39.6 | Non-text elements, placeholder text |
| #CBB63C text on black | 10.29:1 | AAA | Lc -62.8 | 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
#F8F6E8
oklch(97.1% 0.019 100.1)
-
Step 100
100
#F0EBCD
oklch(93.6% 0.04 99.3)
-
Step 200
200
#E5DBA0
oklch(88.5% 0.077 99.6)
-
Step 300
300 (this color)
#CBB63C
oklch(77.3% 0.139 99.3)
-
Step 400
400
#B7A100
oklch(70.7% 0.147 99.5)
-
Step 500
500
#9D8A00
oklch(63.1% 0.131 99.5)
-
Step 600
600
#847400
oklch(55.7% 0.116 99.7)
-
Step 700
700
#6F6100
oklch(49.1% 0.102 99.4)
-
Step 800
800
#5B4F00
oklch(42.7% 0.088 99.2)
-
Step 900
900
#4C4200
oklch(37.8% 0.078 99.5)
-
Step 950
950
#2D2700
oklch(27.1% 0.056 100.5)
#CBB63C 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) | #C7B12A | 0.017 |
| Deuteranopia (no green cones) | #CDB943 | 0.009 |
| Tritanopia (no blue cones) | #DBA99E | 0.128 |
| Achromatopsia (no color) | #B5B5B5 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBB63C
#CBB63C
oklch(77.3% 0.139 99.3)
- #A5ADFF
#A5ADFF
oklch(77.3% 0.117 279)
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 #CBB63C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard #CEB301 ΔE 0.020
- Dark Yellow #D5B60A ΔE 0.022
- Olive Yellow #C2B709 ΔE 0.028
- Burnt Yellow #D5AB09 ΔE 0.030
- Mustard Yellow #D2BD0A ΔE 0.032
- Muddy Yellow #BFAC05 ΔE 0.038
- Dark Khaki #BDB76B ΔE 0.043
- Goldenrod #DAA520 ΔE 0.044
Use #CBB63C 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.