#C5BE37
Closest named color: Mustard Yellow (#D2BD0A). oklch(78.4% 0.15 106.4), rgb(197, 190, 55).
Aa
Black text reads best on this color (10.79:1).
About this color
#C5BE37 is a light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.150 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.022 away. Black text reads best on it, at 10.79:1.
| Hue family | Yellows |
| Lightness | light (78%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 10.79:1 |
| White text | 1.94:1 |
Values
| HEX | #C5BE37 |
| RGB | rgb(197, 190, 55) |
| HSL | hsl(57, 56%, 49%) |
| OKLCH | oklch(78.4% 0.15 106.4) |
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 #C5BE37 | 1.94:1 | Fails | Lc -41.6 | Non-text elements, placeholder text |
| Black text on #C5BE37 | 10.79:1 | AAA | Lc 66.7 | Content text, not long reading |
| #C5BE37 text on white | 1.94:1 | Fails | Lc 37.2 | Non-text elements, placeholder text |
| #C5BE37 text on black | 10.79:1 | AAA | Lc -65.2 | 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
#DFDD9D
oklch(88.4% 0.083 106.5)
-
Step 300
300 (this color)
#C5BE37
oklch(78.4% 0.15 106.4)
-
Step 400
400
#ADA500
oklch(70.6% 0.151 106.2)
-
Step 500
500
#948E00
oklch(63.1% 0.135 106.7)
-
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
#565200
oklch(42.9% 0.092 106.4)
-
Step 900
900
#474400
oklch(37.7% 0.081 106.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#C5BE37 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) | #CEB71E | 0.020 |
| Deuteranopia (no green cones) | #D1BC41 | 0.021 |
| Tritanopia (no blue cones) | #D3B1A4 | 0.137 |
| Achromatopsia (no color) | #BABABA | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C5BE37
#C5BE37
oklch(78.4% 0.15 106.4)
- #B3ADFF
#B3ADFF
oklch(78.3% 0.116 286.8)
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 #C5BE37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.022
- Olive Yellow #C2B709 ΔE 0.023
- Dark Yellow #D5B60A ΔE 0.028
- Mustard #CEB301 ΔE 0.029
- Muddy Yellow #BFAC05 ΔE 0.048
- Light Olive #ACBF69 ΔE 0.048
- Light Olive Green #A4BE5C ΔE 0.049
- Burnt Yellow #D5AB09 ΔE 0.049
Use #C5BE37 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.