#B1A613
Closest named color: Muddy Yellow (#BFAC05). oklch(71.2% 0.147 104.6), rgb(177, 166, 19).
Aa
Black text reads best on this color (8.33:1).
About this color
#B1A613 is a medium-light, vivid yellow. In OKLCH its lightness is 71%, its chroma 0.147 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Muddy Yellow (#BFAC05), ΔE 0.028 away. Black text reads best on it, at 8.33:1.
| Hue family | Yellows |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Muddy Yellow (#BFAC05) |
| Black text | 8.33:1 |
| White text | 2.52:1 |
Values
| HEX | #B1A613 |
| RGB | rgb(177, 166, 19) |
| HSL | hsl(56, 81%, 38%) |
| OKLCH | oklch(71.2% 0.147 104.6) |
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 #B1A613 | 2.52:1 | Fails | Lc -54.3 | Large or bold text, headings |
| Black text on #B1A613 | 8.33:1 | AAA | Lc 54.7 | Large or bold text, headings |
| #B1A613 text on white | 2.52:1 | Fails | Lc 49.3 | Large or bold text, headings |
| #B1A613 text on black | 8.33:1 | AAA | Lc -52.7 | 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
#F6F6ED
oklch(97.1% 0.012 106.6)
-
Step 100
100
#ECEBD7
oklch(93.5% 0.027 104.6)
-
Step 200
200
#DEDCB5
oklch(88.6% 0.052 105)
-
Step 300
300
#C9C47D
oklch(80.8% 0.092 104.8)
-
Step 400
400 (this color)
#B1A613
oklch(71.2% 0.147 104.6)
-
Step 500
500
#978D00
oklch(63.2% 0.134 104.6)
-
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
#575100
oklch(42.7% 0.09 104.7)
-
Step 900
900
#484300
oklch(37.6% 0.08 104.8)
-
Step 950
950
#2B2800
oklch(27.1% 0.058 105.3)
#B1A613 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) | #B6A000 | 0.016 |
| Deuteranopia (no green cones) | #BAA624 | 0.017 |
| Tritanopia (no blue cones) | #BF9A8D | 0.134 |
| Achromatopsia (no color) | #A3A3A3 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1A613
#B1A613
oklch(71.2% 0.147 104.6)
- #9993FA
#9993FA
oklch(71.2% 0.148 284.6)
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 #B1A613, closest first.
No curated palette has a color within ΔE 0.04 of #B1A613.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Yellow #BFAC05 ΔE 0.028
- Ocher #BF9B0C ΔE 0.034
- Brown Yellow #B29705 ΔE 0.039
- Ocre #C69C04 ΔE 0.039
- Pea Soup Green #94A617 ΔE 0.042
- Mustard Green #A8B504 ΔE 0.042
- Yellow Ochre #CB9D06 ΔE 0.045
- Yellow Brown #B79400 ΔE 0.047
Use #B1A613 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.