#C4C03E
Closest named color: Mustard Yellow (#D2BD0A). oklch(78.8% 0.147 107.6), rgb(196, 192, 62).
Aa
Black text reads best on this color (10.95:1).
About this color
#C4C03E is a light, vivid yellow. In OKLCH its lightness is 79%, its chroma 0.147 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.024 away. Black text reads best on it, at 10.95:1.
| Hue family | Yellows |
| Lightness | light (79%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 10.95:1 |
| White text | 1.91:1 |
Values
| HEX | #C4C03E |
| RGB | rgb(196, 192, 62) |
| HSL | hsl(58, 53%, 51%) |
| OKLCH | oklch(78.8% 0.147 107.6) |
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 #C4C03E | 1.91:1 | Fails | Lc -40.8 | Non-text elements, placeholder text |
| Black text on #C4C03E | 10.95:1 | AAA | Lc 67.4 | Content text, not long reading |
| #C4C03E text on white | 1.91:1 | Fails | Lc 36.5 | Non-text elements, placeholder text |
| #C4C03E text on black | 10.95:1 | AAA | Lc -66.0 | 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
#F6F7E8
oklch(97.1% 0.02 109.9)
-
Step 100
100
#ECEDCC
oklch(93.7% 0.043 108.6)
-
Step 200
200
#DEDE9E
oklch(88.5% 0.083 108)
-
Step 300
300 (this color)
#C4C03E
oklch(78.8% 0.147 107.6)
-
Step 400
400
#ABA600
oklch(70.6% 0.152 107.6)
-
Step 500
500
#938E00
oklch(63.1% 0.135 107.2)
-
Step 600
600
#7B7700
oklch(55.5% 0.119 107.4)
-
Step 700
700
#676400
oklch(49% 0.105 107.7)
-
Step 800
800
#555200
oklch(42.8% 0.092 107.3)
-
Step 900
900
#464400
oklch(37.6% 0.081 107.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#C4C03E 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) | #D0B92A | 0.022 |
| Deuteranopia (no green cones) | #D2BD47 | 0.024 |
| Tritanopia (no blue cones) | #D2B4A6 | 0.133 |
| Achromatopsia (no color) | #BBBBBB | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4C03E
#C4C03E
oklch(78.8% 0.147 107.6)
- #B6AEFF
#B6AEFF
oklch(78.8% 0.114 288)
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 #C4C03E, closest first.
No curated palette has a color within ΔE 0.04 of #C4C03E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.024
- Olive Yellow #C2B709 ΔE 0.028
- Dark Yellow #D5B60A ΔE 0.033
- Mustard #CEB301 ΔE 0.034
- Light Olive #ACBF69 ΔE 0.046
- Light Olive Green #A4BE5C ΔE 0.047
- Pea #A4BF20 ΔE 0.051
- Greenish Tan #BCCB7A ΔE 0.052
Use #C4C03E 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.