#CCB100
Closest named color: Mustard (#CEB301). oklch(76.1% 0.157 98.1), rgb(204, 177, 0).
Aa
Black text reads best on this color (9.85:1).
About this color
#CCB100 is a medium-light, vivid yellow. In OKLCH its lightness is 76%, its chroma 0.157 and its hue 98°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard (#CEB301), ΔE 0.006 away. Black text reads best on it, at 9.85:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Mustard (#CEB301) |
| Black text | 9.85:1 |
| White text | 2.13:1 |
Values
| HEX | #CCB100 |
| RGB | rgb(204, 177, 0) |
| HSL | hsl(52, 100%, 40%) |
| OKLCH | oklch(76.1% 0.157 98.1) |
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 #CCB100 | 2.13:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #CCB100 | 9.85:1 | AAA | Lc 62.4 | Content text, not long reading |
| #CCB100 text on white | 2.13:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #CCB100 text on black | 9.85:1 | AAA | Lc -60.7 | 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
#F9F6E6
oklch(97.1% 0.021 98.1)
-
Step 100
100
#F1EBC9
oklch(93.6% 0.045 98.9)
-
Step 200
200
#E8DA97
oklch(88.4% 0.087 97.8)
-
Step 300
300 (this color)
#CCB100
oklch(76.1% 0.157 98.1)
-
Step 400
400
#B9A000
oklch(70.6% 0.146 97.9)
-
Step 500
500
#9F8900
oklch(63.1% 0.13 97.8)
-
Step 600
600
#857300
oklch(55.6% 0.115 98.3)
-
Step 700
700
#706000
oklch(49% 0.101 97.8)
-
Step 800
800
#5C4F00
oklch(42.8% 0.088 98.3)
-
Step 900
900
#4D4100
oklch(37.6% 0.078 97.3)
-
Step 950
950
#2E2600
oklch(27% 0.056 97.1)
#CCB100 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) | #C4AC00 | 0.019 |
| Deuteranopia (no green cones) | #CBB51C | 0.010 |
| Tritanopia (no blue cones) | #DDA296 | 0.145 |
| Achromatopsia (no color) | #B2B2B2 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CCB100
#CCB100
oklch(76.1% 0.157 98.1)
- #9FA9FF
#9FA9FF
oklch(76.1% 0.124 278)
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 #CCB100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard #CEB301 ΔE 0.006
- Dark Yellow #D5B60A ΔE 0.020
- Olive Yellow #C2B709 ΔE 0.020
- Burnt Yellow #D5AB09 ΔE 0.021
- Muddy Yellow #BFAC05 ΔE 0.025
- Mustard Yellow #D2BD0A ΔE 0.033
- Goldenrod #DAA520 ΔE 0.040
- Yellow Ochre #CB9D06 ΔE 0.052
Use #CCB100 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.