#C1BB3F
Closest named color: Olive Yellow (#C2B709). oklch(77.4% 0.142 106.6), rgb(193, 187, 63).
Aa
Black text reads best on this color (10.44:1).
About this color
#C1BB3F is a medium-light, vivid yellow. In OKLCH its lightness is 77%, its chroma 0.142 and its hue 107°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.022 away. Black text reads best on it, at 10.44:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 10.44:1 |
| White text | 2.01:1 |
Values
| HEX | #C1BB3F |
| RGB | rgb(193, 187, 63) |
| HSL | hsl(57, 51%, 50%) |
| OKLCH | oklch(77.4% 0.142 106.6) |
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 #C1BB3F | 2.01:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #C1BB3F | 10.44:1 | AAA | Lc 65.0 | Content text, not long reading |
| #C1BB3F text on white | 2.01:1 | Fails | Lc 38.9 | Non-text elements, placeholder text |
| #C1BB3F text on black | 10.44:1 | AAA | Lc -63.5 | 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
#F7F7E8
oklch(97.2% 0.02 106.8)
-
Step 100
100
#EDECCD
oklch(93.6% 0.041 105.6)
-
Step 200
200
#DFDDA0
oklch(88.5% 0.079 106.3)
-
Step 300
300 (this color)
#C1BB3F
oklch(77.4% 0.142 106.6)
-
Step 400
400
#ADA600
oklch(70.8% 0.152 106.7)
-
Step 500
500
#948E00
oklch(63.1% 0.135 106.7)
-
Step 600
600
#7C7700
oklch(55.6% 0.119 106.8)
-
Step 700
700
#686400
oklch(49.1% 0.105 107)
-
Step 800
800
#555200
oklch(42.8% 0.092 107.3)
-
Step 900
900
#474400
oklch(37.7% 0.081 106.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#C1BB3F 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) | #CBB42D | 0.021 |
| Deuteranopia (no green cones) | #CDB947 | 0.021 |
| Tritanopia (no blue cones) | #CFAFA2 | 0.129 |
| Achromatopsia (no color) | #B7B7B7 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C1BB3F
#C1BB3F
oklch(77.4% 0.142 106.6)
- #B0AAFF
#B0AAFF
oklch(77.5% 0.12 286.5)
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 #C1BB3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.022
- Mustard #CEB301 ΔE 0.028
- Mustard Yellow #D2BD0A ΔE 0.031
- Dark Yellow #D5B60A ΔE 0.032
- Light Olive #ACBF69 ΔE 0.040
- Muddy Yellow #BFAC05 ΔE 0.041
- Light Olive Green #A4BE5C ΔE 0.041
- Dark Khaki #BDB76B ΔE 0.045
Use #C1BB3F 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.