#B5B040
Closest named color: Muddy Yellow (#BFAC05). oklch(74% 0.132 106.8), rgb(181, 176, 64).
Aa
Black text reads best on this color (9.24:1).
About this color
#B5B040 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 74%, its chroma 0.132 and its hue 107°. Its hue sits on the warm side of the wheel. The nearest named color is Muddy Yellow (#BFAC05), ΔE 0.025 away. Black text reads best on it, at 9.24:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Muddy Yellow (#BFAC05) |
| Black text | 9.24:1 |
| White text | 2.27:1 |
Values
| HEX | #B5B040 |
| RGB | rgb(181, 176, 64) |
| HSL | hsl(57, 48%, 48%) |
| OKLCH | oklch(74% 0.132 106.8) |
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 #B5B040 | 2.27:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #B5B040 | 9.24:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #B5B040 text on white | 2.27:1 | Fails | Lc 44.7 | Non-text elements, placeholder text |
| #B5B040 text on black | 9.24:1 | AAA | Lc -57.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F6F6EE
oklch(97.1% 0.011 106.6)
-
Step 100
100
#EBEBD9
oklch(93.5% 0.024 106.9)
-
Step 200
200
#DCDCB9
oklch(88.5% 0.046 107.3)
-
Step 300
300
#C6C586
oklch(80.9% 0.083 107.3)
-
Step 400
400 (this color)
#B5B040
oklch(74% 0.132 106.8)
-
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)
#B5B040 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) | #BEAA31 | 0.018 |
| Deuteranopia (no green cones) | #C1AE47 | 0.021 |
| Tritanopia (no blue cones) | #C2A599 | 0.120 |
| Achromatopsia (no color) | #ACACAC | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5B040
#B5B040
oklch(74% 0.132 106.8)
- #A59DFA
#A59DFA
oklch(74% 0.133 286.6)
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 #B5B040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Yellow #BFAC05 ΔE 0.025
- Olive Yellow #C2B709 ΔE 0.038
- Light Olive Green #A4BE5C ΔE 0.040
- Mustard Green #A8B504 ΔE 0.040
- Mustard #CEB301 ΔE 0.043
- Dark Khaki #BDB76B ΔE 0.044
- Light Olive #ACBF69 ΔE 0.045
- Burnt Yellow #D5AB09 ΔE 0.048
Use #B5B040 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.