#B1BF55
Closest named color: Light Olive Green (#A4BE5C). oklch(77.2% 0.132 115.8), rgb(177, 191, 85).
Aa
Black text reads best on this color (10.45:1).
About this color
#B1BF55 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 77%, its chroma 0.132 and its hue 116°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.018 away. Black text reads best on it, at 10.45:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 10.45:1 |
| White text | 2.00:1 |
Values
| HEX | #B1BF55 |
| RGB | rgb(177, 191, 85) |
| HSL | hsl(68, 45%, 54%) |
| OKLCH | oklch(77.2% 0.132 115.8) |
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 #B1BF55 | 2.00:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #B1BF55 | 10.45:1 | AAA | Lc 65.0 | Content text, not long reading |
| #B1BF55 text on white | 2.00:1 | Fails | Lc 38.9 | Non-text elements, placeholder text |
| #B1BF55 text on black | 10.45:1 | 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
#F5F7EA
oklch(97.1% 0.017 113.8)
-
Step 100
100
#E8EED1
oklch(93.7% 0.039 116.6)
-
Step 200
200
#D6E0A8
oklch(88.5% 0.074 116.2)
-
Step 300
300 (this color)
#B1BF55
oklch(77.2% 0.132 115.8)
-
Step 400
400
#9DAC00
oklch(70.8% 0.162 115.9)
-
Step 500
500
#869300
oklch(63.1% 0.144 115.9)
-
Step 600
600
#707B00
oklch(55.5% 0.127 115.8)
-
Step 700
700
#5E6800
oklch(49.2% 0.113 116.2)
-
Step 800
800
#4D5500
oklch(42.8% 0.098 115.9)
-
Step 900
900
#404700
oklch(37.8% 0.086 116)
-
Step 950
950
#252A00
oklch(27.1% 0.062 116.5)
#B1BF55 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) | #CBB64A | 0.040 |
| Deuteranopia (no green cones) | #CAB85B | 0.041 |
| Tritanopia (no blue cones) | #BBB5A8 | 0.116 |
| Achromatopsia (no color) | #B7B7B7 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BF55
#B1BF55
oklch(77.2% 0.132 115.8)
- #BCA3FF
#BCA3FF
oklch(77.2% 0.131 295.7)
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 #B1BF55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.018
- Light Olive #ACBF69 ΔE 0.020
- Tan Green #A9BE70 ΔE 0.029
- Light Moss Green #A6C875 ΔE 0.033
- Olive Yellow #C2B709 ΔE 0.040
- Dark Khaki #BDB76B ΔE 0.041
- Pea #A4BF20 ΔE 0.043
- Greenish Tan #BCCB7A ΔE 0.048
Use #B1BF55 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.