#B36539
Closest named color: Copper (#B66325). oklch(58.7% 0.116 48.6), rgb(179, 101, 57).
Aa
Black text reads best on this color (4.83:1).
About this color
#B36539 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.116 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.016 away. Black text reads best on it, at 4.83:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #B36539 |
| RGB | rgb(179, 101, 57) |
| HSL | hsl(22, 52%, 46%) |
| OKLCH | oklch(58.7% 0.116 48.6) |
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 #B36539 | 4.34:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #B36539 | 4.83:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #B36539 text on white | 4.34:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #B36539 text on black | 4.83:1 | AA | Lc -31.9 | 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
#EAD4C9
oklch(88.5% 0.029 48.4)
-
Step 300
300
#DEB7A4
oklch(80.9% 0.052 47.4)
-
Step 400
400
#CC9172
oklch(70.7% 0.084 48.6)
-
Step 500
500
#BD754D
oklch(63.1% 0.106 49.1)
-
Step 600
600 (this color)
#B36539
oklch(58.7% 0.116 48.6)
-
Step 700
700
#914B22
oklch(49.1% 0.109 48.4)
-
Step 800
800
#763E1E
oklch(42.8% 0.09 48.4)
-
Step 900
900
#5F351E
oklch(37.6% 0.07 48.3)
-
Step 950
950
#381F12
oklch(26.9% 0.045 47.6)
#B36539 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) | #7B6F35 | 0.100 |
| Deuteranopia (no green cones) | #8D8038 | 0.093 |
| Tritanopia (no blue cones) | #C3555B | 0.070 |
| Achromatopsia (no color) | #797979 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B36539
#B36539
oklch(58.7% 0.116 48.6)
- #0088B2
#0088B2
oklch(58.6% 0.115 228.8)
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 #B36539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.016
- Clay #B66A50 ΔE 0.026
- Clay Brown #B2713D ΔE 0.029
- Adobe #BD6C48 ΔE 0.029
- Earth #A2653E ΔE 0.031
- Tiger's Eye #BC6C25 ΔE 0.032
- Orangey Brown #B16002 ΔE 0.033
- Umber #B26400 ΔE 0.034
Use #B36539 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.