#B66937
Closest named color: Copper (#B66325). oklch(59.8% 0.118 51.6), rgb(182, 105, 55).
Aa
Black text reads best on this color (5.06:1).
About this color
#B66937 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 60%, its chroma 0.118 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.017 away. Black text reads best on it, at 5.06:1.
| Hue family | Browns |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #B66937 |
| RGB | rgb(182, 105, 55) |
| HSL | hsl(24, 54%, 46%) |
| OKLCH | oklch(59.8% 0.118 51.6) |
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 #B66937 | 4.14:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #B66937 | 5.06:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #B66937 text on white | 4.14:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #B66937 text on black | 5.06:1 | AA | Lc -33.5 | 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 500.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#EBD4C6
oklch(88.5% 0.032 53.5)
-
Step 300
300
#E0B79F
oklch(81% 0.058 52)
-
Step 400
400
#CF906B
oklch(70.7% 0.092 51.2)
-
Step 500
500 (this color)
#B66937
oklch(59.8% 0.118 51.6)
-
Step 600
600
#AC5A1F
oklch(55.6% 0.127 51.7)
-
Step 700
700
#944910
oklch(49.1% 0.119 51.4)
-
Step 800
800
#783D12
oklch(42.8% 0.098 52)
-
Step 900
900
#613417
oklch(37.6% 0.077 51.1)
-
Step 950
950
#391F0F
oklch(27% 0.048 51.1)
#B66937 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) | #7F7232 | 0.098 |
| Deuteranopia (no green cones) | #918337 | 0.089 |
| Tritanopia (no blue cones) | #C7595E | 0.075 |
| Achromatopsia (no color) | #7C7C7C | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B66937
#B66937
oklch(59.8% 0.118 51.6)
- #118BB9
#118BB9
oklch(59.8% 0.118 231.4)
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 #B66937, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.017
- Clay Brown #B2713D ΔE 0.019
- Tiger's Eye #BC6C25 ΔE 0.021
- Adobe #BD6C48 ΔE 0.023
- Clay #B66A50 ΔE 0.027
- Orange Brown #BE6400 ΔE 0.030
- Brown Orange #B96902 ΔE 0.030
- Umber #B26400 ΔE 0.032
Use #B66937 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.