#B5663C
Closest named color: Copper (#B66325). oklch(59.2% 0.116 47.4), rgb(181, 102, 60).
Aa
Black text reads best on this color (4.93:1).
About this color
#B5663C is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.116 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.019 away. Black text reads best on it, at 4.93:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #B5663C |
| RGB | rgb(181, 102, 60) |
| HSL | hsl(21, 50%, 47%) |
| OKLCH | oklch(59.2% 0.116 47.4) |
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 #B5663C | 4.25:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #B5663C | 4.93:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #B5663C text on white | 4.25:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #B5663C text on black | 4.93:1 | AA | Lc -32.6 | 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
#CC9173
oklch(70.7% 0.083 47.9)
-
Step 500
500
#BE744E
oklch(63.1% 0.107 47.3)
-
Step 600
600 (this color)
#B5663C
oklch(59.2% 0.116 47.4)
-
Step 700
700
#914B24
oklch(49.2% 0.108 47.5)
-
Step 800
800
#763E1F
oklch(42.8% 0.09 47.8)
-
Step 900
900
#5F351F
oklch(37.7% 0.069 47.4)
-
Step 950
950
#381F13
oklch(26.9% 0.044 46)
#B5663C 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) | #7C7038 | 0.101 |
| Deuteranopia (no green cones) | #8F813B | 0.092 |
| Tritanopia (no blue cones) | #C6565C | 0.069 |
| Achromatopsia (no color) | #7B7B7B | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5663C
#B5663C
oklch(59.2% 0.116 47.4)
- #008AB3
#008AB3
oklch(59.1% 0.115 227.8)
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 #B5663C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.019
- Clay #B66A50 ΔE 0.022
- Adobe #BD6C48 ΔE 0.024
- Clay Brown #B2713D ΔE 0.027
- Tiger's Eye #BC6C25 ΔE 0.031
- Earth #A2653E ΔE 0.035
- Orange Brown #BE6400 ΔE 0.036
- Terra Cotta #C9643B ΔE 0.036
Use #B5663C 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.