#C1BE27
Closest named color: Olive Yellow (#C2B709). oklch(77.9% 0.159 108.4), rgb(193, 190, 39).
Aa
Black text reads best on this color (10.66:1).
About this color
#C1BE27 is a medium-light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.159 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.018 away. Black text reads best on it, at 10.66:1.
| Hue family | Yellows |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 10.66:1 |
| White text | 1.96:1 |
Values
| HEX | #C1BE27 |
| RGB | rgb(193, 190, 39) |
| HSL | hsl(59, 66%, 45%) |
| OKLCH | oklch(77.9% 0.159 108.4) |
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 #C1BE27 | 1.96:1 | Fails | Lc -42.2 | Non-text elements, placeholder text |
| Black text on #C1BE27 | 10.66:1 | AAA | Lc 66.1 | Content text, not long reading |
| #C1BE27 text on white | 1.96:1 | Fails | Lc 37.8 | Non-text elements, placeholder text |
| #C1BE27 text on black | 10.66:1 | AAA | Lc -64.6 | 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
#F6F7E7
oklch(97.1% 0.021 109.7)
-
Step 100
100
#ECEDCA
oklch(93.6% 0.046 108.6)
-
Step 200
200
#DEDE9A
oklch(88.5% 0.088 108.1)
-
Step 300
300 (this color)
#C1BE27
oklch(77.9% 0.159 108.4)
-
Step 400
400
#AAA700
oklch(70.8% 0.153 108.5)
-
Step 500
500
#928F00
oklch(63.2% 0.136 108.3)
-
Step 600
600
#7A7800
oklch(55.6% 0.12 108.6)
-
Step 700
700
#676500
oklch(49.2% 0.106 108.4)
-
Step 800
800
#545200
oklch(42.7% 0.092 108.1)
-
Step 900
900
#464400
oklch(37.6% 0.081 107.8)
-
Step 950
950
#292800
oklch(26.9% 0.058 108.3)
#C1BE27 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) | #CEB600 | 0.025 |
| Deuteranopia (no green cones) | #D1BB35 | 0.027 |
| Tritanopia (no blue cones) | #CFB1A3 | 0.144 |
| Achromatopsia (no color) | #B9B9B9 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C1BE27
#C1BE27
oklch(77.9% 0.159 108.4)
- #B4ABFF
#B4ABFF
oklch(78% 0.119 288.2)
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 #C1BE27, closest first.
No curated palette has a color within ΔE 0.04 of #C1BE27.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.018
- Mustard Yellow #D2BD0A ΔE 0.024
- Mustard #CEB301 ΔE 0.031
- Dark Yellow #D5B60A ΔE 0.033
- Pea #A4BF20 ΔE 0.041
- Muddy Yellow #BFAC05 ΔE 0.046
- Mustard Green #A8B504 ΔE 0.046
- Light Olive Green #A4BE5C ΔE 0.049
Use #C1BE27 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.