#B0663E
Closest named color: Copper (#B66325). oklch(58.5% 0.11 48), rgb(176, 102, 62).
Aa
Black text reads best on this color (4.81:1).
About this color
#B0663E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.110 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.022 away. Black text reads best on it, at 4.81:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #B0663E |
| RGB | rgb(176, 102, 62) |
| HSL | hsl(21, 48%, 47%) |
| OKLCH | oklch(58.5% 0.11 48) |
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 #B0663E | 4.36:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #B0663E | 4.81:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #B0663E text on white | 4.36:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #B0663E text on black | 4.81:1 | AA | Lc -31.8 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E2
oklch(93.5% 0.014 46.2)
-
Step 200
200
#E9D4CA
oklch(88.4% 0.027 47.2)
-
Step 300
300
#DCB8A5
oklch(80.9% 0.049 49.4)
-
Step 400
400
#CA9275
oklch(70.7% 0.079 48.4)
-
Step 500
500
#BB7651
oklch(63.1% 0.101 48.4)
-
Step 600
600 (this color)
#B0663E
oklch(58.5% 0.11 48)
-
Step 700
700
#8E4D28
oklch(49.1% 0.101 48.5)
-
Step 800
800
#743F22
oklch(42.7% 0.085 47.9)
-
Step 900
900
#5E3621
oklch(37.7% 0.066 47.7)
-
Step 950
950
#372014
oklch(27% 0.041 48)
#B0663E 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) | #7A6F3A | 0.096 |
| Deuteranopia (no green cones) | #8C7F3D | 0.087 |
| Tritanopia (no blue cones) | #C0585D | 0.065 |
| Achromatopsia (no color) | #797979 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B0663E
#B0663E
oklch(58.5% 0.11 48)
- #1388AF
#1388AF
oklch(58.6% 0.11 227.8)
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 #B0663E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.022
- Clay #B66A50 ΔE 0.024
- Earth #A2653E ΔE 0.026
- Clay Brown #B2713D ΔE 0.029
- Adobe #BD6C48 ΔE 0.031
- Orangey Brown #B16002 ΔE 0.037
- Tiger's Eye #BC6C25 ΔE 0.037
- Umber #B26400 ΔE 0.038
Use #B0663E 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.