#C4BC31
Closest named color: Olive Yellow (#C2B709). oklch(77.8% 0.151 106), rgb(196, 188, 49).
Aa
Black text reads best on this color (10.58:1).
About this color
#C4BC31 is a medium-light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.151 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.017 away. Black text reads best on it, at 10.58:1.
| Hue family | Yellows |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 10.58:1 |
| White text | 1.98:1 |
Values
| HEX | #C4BC31 |
| RGB | rgb(196, 188, 49) |
| HSL | hsl(57, 60%, 48%) |
| OKLCH | oklch(77.8% 0.151 106) |
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 #C4BC31 | 1.98:1 | Fails | Lc -42.6 | Non-text elements, placeholder text |
| Black text on #C4BC31 | 10.58:1 | AAA | Lc 65.7 | Content text, not long reading |
| #C4BC31 text on white | 1.98:1 | Fails | Lc 38.2 | Non-text elements, placeholder text |
| #C4BC31 text on black | 10.58:1 | AAA | Lc -64.2 | 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
#F7F7E7
oklch(97.2% 0.021 106.8)
-
Step 100
100
#EDECCB
oklch(93.5% 0.043 105.8)
-
Step 200
200
#E0DD9C
oklch(88.5% 0.084 105.8)
-
Step 300
300 (this color)
#C4BC31
oklch(77.8% 0.151 106)
-
Step 400
400
#AEA500
oklch(70.7% 0.151 105.7)
-
Step 500
500
#958D00
oklch(63% 0.134 105.6)
-
Step 600
600
#7D7700
oklch(55.7% 0.119 106.2)
-
Step 700
700
#696400
oklch(49.2% 0.105 106.3)
-
Step 800
800
#565100
oklch(42.6% 0.091 105.5)
-
Step 900
900
#474400
oklch(37.7% 0.081 106.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#C4BC31 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) | #CCB512 | 0.020 |
| Deuteranopia (no green cones) | #D0BB3C | 0.021 |
| Tritanopia (no blue cones) | #D3AFA2 | 0.139 |
| Achromatopsia (no color) | #B8B8B8 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4BC31
#C4BC31
oklch(77.8% 0.151 106)
- #B0ABFF
#B0ABFF
oklch(77.7% 0.119 286)
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 #C4BC31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.017
- Mustard Yellow #D2BD0A ΔE 0.023
- Mustard #CEB301 ΔE 0.025
- Dark Yellow #D5B60A ΔE 0.027
- Muddy Yellow #BFAC05 ΔE 0.042
- Burnt Yellow #D5AB09 ΔE 0.046
- Pea #A4BF20 ΔE 0.048
- Light Olive Green #A4BE5C ΔE 0.048
Use #C4BC31 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.