#B66543
Closest named color: Clay (#B66A50). oklch(59.3% 0.115 42.9), rgb(182, 101, 67).
Aa
Black text reads best on this color (4.93:1).
About this color
#B66543 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.115 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.016 away. Black text reads best on it, at 4.93:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #B66543 |
| RGB | rgb(182, 101, 67) |
| HSL | hsl(18, 46%, 49%) |
| OKLCH | oklch(59.3% 0.115 42.9) |
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 #B66543 | 4.25:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #B66543 | 4.93:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #B66543 text on white | 4.25:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #B66543 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EBD4CA
oklch(88.6% 0.029 45)
-
Step 300
300
#DFB7A6
oklch(81% 0.052 44.3)
-
Step 400
400
#CD9077
oklch(70.7% 0.083 43.2)
-
Step 500
500
#BF7354
oklch(63.1% 0.106 42.7)
-
Step 600
600 (this color)
#B66543
oklch(59.3% 0.115 42.9)
-
Step 700
700
#924A2B
oklch(49.2% 0.107 43)
-
Step 800
800
#763D24
oklch(42.7% 0.088 43.5)
-
Step 900
900
#603422
oklch(37.7% 0.07 42.6)
-
Step 950
950
#381F15
oklch(27% 0.043 42.4)
#B66543 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) | #7B7040 | 0.105 |
| Deuteranopia (no green cones) | #8E8142 | 0.096 |
| Tritanopia (no blue cones) | #C6565D | 0.061 |
| Achromatopsia (no color) | #7B7B7B | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B66543
#B66543
oklch(59.3% 0.115 42.9)
- #008CAD
#008CAD
oklch(59.3% 0.11 222.2)
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 #B66543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.016
- Adobe #BD6C48 ΔE 0.022
- Copper #B66325 ΔE 0.027
- Clay Brown #B2713D ΔE 0.033
- Terra Cotta #C9643B ΔE 0.035
- Terracotta #CA6641 ΔE 0.037
- Earth #A2653E ΔE 0.037
- Tiger's Eye #BC6C25 ΔE 0.038
Use #B66543 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.