#BFBF51
Closest named color: Light Olive (#ACBF69). oklch(78.3% 0.132 109.1), rgb(191, 191, 81).
Aa
Black text reads best on this color (10.78:1).
About this color
#BFBF51 is a light, moderately saturated yellow. In OKLCH its lightness is 78%, its chroma 0.132 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Light Olive (#ACBF69), ΔE 0.031 away. Black text reads best on it, at 10.78:1.
| Hue family | Yellows |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Light Olive (#ACBF69) |
| Black text | 10.78:1 |
| White text | 1.94:1 |
Values
| HEX | #BFBF51 |
| RGB | rgb(191, 191, 81) |
| HSL | hsl(60, 46%, 53%) |
| OKLCH | oklch(78.3% 0.132 109.1) |
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 #BFBF51 | 1.94:1 | Fails | Lc -41.7 | Non-text elements, placeholder text |
| Black text on #BFBF51 | 10.78:1 | AAA | Lc 66.6 | Content text, not long reading |
| #BFBF51 text on white | 1.94:1 | Fails | Lc 37.3 | Non-text elements, placeholder text |
| #BFBF51 text on black | 10.78:1 | AAA | Lc -65.1 | 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
#F6F7E9
oklch(97.2% 0.018 110.1)
-
Step 100
100
#EBECCF
oklch(93.5% 0.038 108.7)
-
Step 200
200
#DCDEA5
oklch(88.5% 0.074 109.5)
-
Step 300
300 (this color)
#BFBF51
oklch(78.3% 0.132 109.1)
-
Step 400
400
#A9A700
oklch(70.7% 0.153 108.9)
-
Step 500
500
#918F00
oklch(63.1% 0.137 108.8)
-
Step 600
600
#797800
oklch(55.5% 0.121 109.2)
-
Step 700
700
#666500
oklch(49.1% 0.107 109.1)
-
Step 800
800
#535200
oklch(42.6% 0.092 108.9)
-
Step 900
900
#454500
oklch(37.8% 0.082 109.8)
-
Step 950
950
#292800
oklch(26.9% 0.058 108.3)
#BFBF51 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) | #CDB845 | 0.024 |
| Deuteranopia (no green cones) | #CFBC57 | 0.026 |
| Tritanopia (no blue cones) | #CBB4A7 | 0.118 |
| Achromatopsia (no color) | #BABABA | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFBF51
#BFBF51
oklch(78.3% 0.132 109.1)
- #B6ACFF
#B6ACFF
oklch(78.4% 0.117 288.9)
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 #BFBF51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive #ACBF69 ΔE 0.031
- Olive Yellow #C2B709 ΔE 0.036
- Light Olive Green #A4BE5C ΔE 0.037
- Mustard Yellow #D2BD0A ΔE 0.038
- Dark Khaki #BDB76B ΔE 0.039
- Tan Green #A9BE70 ΔE 0.040
- Mustard #CEB301 ΔE 0.041
- Dark Yellow #D5B60A ΔE 0.042
Use #BFBF51 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.