#B5AB09
Closest named color: Muddy Yellow (#BFAC05). oklch(72.7% 0.153 105.3), rgb(181, 171, 9).
Aa
Black text reads best on this color (8.79:1).
About this color
#B5AB09 is a medium-light, vivid yellow. In OKLCH its lightness is 73%, its chroma 0.153 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Muddy Yellow (#BFAC05), ΔE 0.016 away. Black text reads best on it, at 8.79:1.
| Hue family | Yellows |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Muddy Yellow (#BFAC05) |
| Black text | 8.79:1 |
| White text | 2.38:1 |
Values
| HEX | #B5AB09 |
| RGB | rgb(181, 171, 9) |
| HSL | hsl(57, 91%, 37%) |
| OKLCH | oklch(72.7% 0.153 105.3) |
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 #B5AB09 | 2.38:1 | Fails | Lc -51.8 | Large or bold text, headings |
| Black text on #B5AB09 | 8.79:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #B5AB09 text on white | 2.38:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #B5AB09 text on black | 8.79:1 | AAA | Lc -55.2 | 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
#F6F6EC
oklch(97% 0.013 106.6)
-
Step 100
100
#ECEBD6
oklch(93.5% 0.028 104.7)
-
Step 200
200
#DEDCB4
oklch(88.6% 0.053 105.1)
-
Step 300
300
#C9C57A
oklch(81% 0.097 105.7)
-
Step 400
400 (this color)
#B5AB09
oklch(72.7% 0.153 105.3)
-
Step 500
500
#968D00
oklch(63.1% 0.134 105.1)
-
Step 600
600
#7E7600
oklch(55.5% 0.118 104.9)
-
Step 700
700
#6A6300
oklch(49.1% 0.104 104.8)
-
Step 800
800
#565100
oklch(42.6% 0.091 105.5)
-
Step 900
900
#484300
oklch(37.6% 0.08 104.8)
-
Step 950
950
#2B2800
oklch(27.1% 0.058 105.3)
#B5AB09 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) | #BBA400 | 0.019 |
| Deuteranopia (no green cones) | #BFAA20 | 0.018 |
| Tritanopia (no blue cones) | #C39E91 | 0.140 |
| Achromatopsia (no color) | #A8A8A8 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5AB09
#B5AB09
oklch(72.7% 0.153 105.3)
- #9F97FF
#9F97FF
oklch(72.7% 0.148 285.6)
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 #B5AB09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Yellow #BFAC05 ΔE 0.016
- Mustard Green #A8B504 ΔE 0.032
- Olive Yellow #C2B709 ΔE 0.039
- Ocher #BF9B0C ΔE 0.044
- Mustard #CEB301 ΔE 0.045
- Ocre #C69C04 ΔE 0.045
- Yellow Ochre #CB9D06 ΔE 0.048
- Avocado #90B134 ΔE 0.050
Use #B5AB09 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.