#B66040
Closest named color: Clay (#B66A50). oklch(58.4% 0.12 40.7), rgb(182, 96, 64).
Aa
Black text reads best on this color (4.73:1).
About this color
#B66040 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.120 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.025 away. Black text reads best on it, at 4.73:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #B66040 |
| RGB | rgb(182, 96, 64) |
| HSL | hsl(16, 48%, 48%) |
| OKLCH | oklch(58.4% 0.12 40.7) |
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 #B66040 | 4.43:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #B66040 | 4.73:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #B66040 text on white | 4.43:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #B66040 text on black | 4.73:1 | AA | Lc -31.3 | 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
#F4E7E2
oklch(93.7% 0.016 42.4)
-
Step 200
200
#ECD3CA
oklch(88.5% 0.031 40.9)
-
Step 300
300
#E0B6A6
oklch(80.9% 0.054 41.9)
-
Step 400
400
#CF8E77
oklch(70.6% 0.086 40.3)
-
Step 500
500
#C27153
oklch(63.2% 0.111 40.9)
-
Step 600
600 (this color)
#B66040
oklch(58.4% 0.12 40.7)
-
Step 700
700
#94472A
oklch(49% 0.112 40.6)
-
Step 800
800
#783B24
oklch(42.6% 0.092 40.8)
-
Step 900
900
#613322
oklch(37.6% 0.072 40.8)
-
Step 950
950
#391E14
oklch(26.9% 0.046 40.9)
#B66040 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) | #776C3D | 0.113 |
| Deuteranopia (no green cones) | #8C7F3F | 0.104 |
| Tritanopia (no blue cones) | #C75058 | 0.060 |
| Achromatopsia (no color) | #787878 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B66040
#B66040
oklch(58.4% 0.12 40.7)
- #0089A8
#0089A8
oklch(58.4% 0.107 221.2)
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 #B66040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.025
- Copper #B66325 ΔE 0.029
- Adobe #BD6C48 ΔE 0.032
- Earth #A2653E ΔE 0.038
- Terra Cotta #C9643B ΔE 0.038
- Terracotta #CA6641 ΔE 0.041
- Rust Orange #C45508 ΔE 0.042
- Burnt Siena #B75203 ΔE 0.043
Use #B66040 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.