#B15B2A
Closest named color: Burnt Siena (#B75203). oklch(56.6% 0.128 47.6), rgb(177, 91, 42).
Aa
White text reads best on this color (4.77:1).
About this color
#B15B2A is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.128 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.024 away. White text reads best on it, at 4.77:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.39:1 |
| White text | 4.77:1 |
Values
| HEX | #B15B2A |
| RGB | rgb(177, 91, 42) |
| HSL | hsl(22, 62%, 43%) |
| OKLCH | oklch(56.6% 0.128 47.6) |
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 #B15B2A | 4.77:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #B15B2A | 4.39:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #B15B2A text on white | 4.77:1 | AA | Lc 72.7 | Content text, not long reading |
| #B15B2A text on black | 4.39:1 | AA large text | Lc -29.0 | Dividers and decoration only |
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 600.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E1
oklch(93.7% 0.016 46.6)
-
Step 200
200
#ECD3C7
oklch(88.4% 0.032 47.3)
-
Step 300
300
#E1B6A1
oklch(80.9% 0.058 47.4)
-
Step 400
400
#D08F6E
oklch(70.7% 0.092 47.7)
-
Step 500
500
#C27147
oklch(63% 0.117 47.2)
-
Step 600
600 (this color)
#B15B2A
oklch(56.6% 0.128 47.6)
-
Step 700
700
#954819
oklch(49.1% 0.119 48)
-
Step 800
800
#793B18
oklch(42.6% 0.098 47.2)
-
Step 900
900
#62331A
oklch(37.6% 0.077 47.1)
-
Step 950
950
#3A1E10
oklch(27% 0.05 46.4)
#B15B2A 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) | #736724 | 0.114 |
| Deuteranopia (no green cones) | #887A29 | 0.103 |
| Tritanopia (no blue cones) | #C24951 | 0.074 |
| Achromatopsia (no color) | #737373 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B15B2A
#B15B2A
oklch(56.6% 0.128 47.6)
- #0082A8
#0082A8
oklch(56.6% 0.11 227.3)
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 #B15B2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.024
- Copper #B66325 ΔE 0.024
- Orangey Brown #B16002 ΔE 0.027
- Raw Umber #A75E09 ΔE 0.030
- Cinnamon #AC4F06 ΔE 0.032
- Earth #A2653E ΔE 0.033
- Umber #B26400 ΔE 0.035
- Burnt Orange #C04E01 ΔE 0.035
Use #B15B2A 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.