#C4B310
Closest named color: Olive Yellow (#C2B709). oklch(75.8% 0.156 102.4), rgb(196, 179, 16).
Aa
Black text reads best on this color (9.80:1).
About this color
#C4B310 is a medium-light, vivid yellow. In OKLCH its lightness is 76%, its chroma 0.156 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.011 away. Black text reads best on it, at 9.80:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.80:1 |
| White text | 2.14:1 |
Values
| HEX | #C4B310 |
| RGB | rgb(196, 179, 16) |
| HSL | hsl(54, 85%, 42%) |
| OKLCH | oklch(75.8% 0.156 102.4) |
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 #C4B310 | 2.14:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #C4B310 | 9.80:1 | AAA | Lc 62.1 | Content text, not long reading |
| #C4B310 text on white | 2.14:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #C4B310 text on black | 9.80:1 | AAA | Lc -60.4 | 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 400.
-
Step 50
50
#F7F6EC
oklch(97.1% 0.013 102)
-
Step 100
100
#EDEBD6
oklch(93.6% 0.028 102.5)
-
Step 200
200
#DFDBB2
oklch(88.4% 0.054 102.8)
-
Step 300
300
#CCC377
oklch(80.8% 0.098 102.4)
-
Step 400
400 (this color)
#C4B310
oklch(75.8% 0.156 102.4)
-
Step 500
500
#998C00
oklch(63.2% 0.133 102.9)
-
Step 600
600
#817500
oklch(55.6% 0.117 102.3)
-
Step 700
700
#6C6200
oklch(49% 0.103 102.5)
-
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)
#C4B310 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) | #C5AD00 | 0.015 |
| Deuteranopia (no green cones) | #CAB424 | 0.012 |
| Tritanopia (no blue cones) | #D4A598 | 0.143 |
| Achromatopsia (no color) | #B1B1B1 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4B310
#C4B310
oklch(75.8% 0.156 102.4)
- #A4A5FF
#A4A5FF
oklch(75.7% 0.128 282.4)
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 #C4B310, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.011
- Mustard #CEB301 ΔE 0.015
- Muddy Yellow #BFAC05 ΔE 0.020
- Dark Yellow #D5B60A ΔE 0.028
- Burnt Yellow #D5AB09 ΔE 0.032
- Mustard Yellow #D2BD0A ΔE 0.035
- Mustard Green #A8B504 ΔE 0.041
- Goldenrod #DAA520 ΔE 0.050
Use #C4B310 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.