#B36131
Closest named color: Copper (#B66325). oklch(57.9% 0.123 48.8), rgb(179, 97, 49).
Aa
Black text reads best on this color (4.67:1).
About this color
#B36131 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.123 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.013 away. Black text reads best on it, at 4.67:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #B36131 |
| RGB | rgb(179, 97, 49) |
| HSL | hsl(22, 57%, 45%) |
| OKLCH | oklch(57.9% 0.123 48.8) |
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 #B36131 | 4.49:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #B36131 | 4.67:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #B36131 text on white | 4.49:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #B36131 text on black | 4.67:1 | AA | Lc -30.9 | Non-text elements, placeholder text |
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
#F3E7E1
oklch(93.6% 0.015 48.6)
-
Step 200
200
#EBD4C8
oklch(88.6% 0.03 49.4)
-
Step 300
300
#DFB7A2
oklch(80.9% 0.055 49.2)
-
Step 400
400
#CE906F
oklch(70.7% 0.088 48.9)
-
Step 500
500
#C07348
oklch(63.1% 0.113 48.9)
-
Step 600
600 (this color)
#B36131
oklch(57.9% 0.123 48.8)
-
Step 700
700
#93491C
oklch(49% 0.115 48.4)
-
Step 800
800
#773D1A
oklch(42.7% 0.094 49)
-
Step 900
900
#61341B
oklch(37.7% 0.075 48.2)
-
Step 950
950
#391F11
oklch(27% 0.047 48.2)
#B36131 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) | #786C2C | 0.107 |
| Deuteranopia (no green cones) | #8C7E30 | 0.097 |
| Tritanopia (no blue cones) | #C45056 | 0.072 |
| Achromatopsia (no color) | #777777 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B36131
#B36131
oklch(57.9% 0.123 48.8)
- #0086AF
#0086AF
oklch(57.9% 0.114 228.5)
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 #B36131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.013
- Orangey Brown #B16002 ΔE 0.026
- Umber #B26400 ΔE 0.030
- Earth #A2653E ΔE 0.031
- Orange Brown #BE6400 ΔE 0.034
- Burnt Siena #B75203 ΔE 0.035
- Clay #B66A50 ΔE 0.035
- Raw Umber #A75E09 ΔE 0.035
Use #B36131 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.