#B8603B
Closest named color: Copper (#B66325). oklch(58.6% 0.125 42.7), rgb(184, 96, 59).
Aa
Black text reads best on this color (4.77:1).
About this color
#B8603B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.125 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.024 away. Black text reads best on it, at 4.77:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.125) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.77:1 |
| White text | 4.39:1 |
Values
| HEX | #B8603B |
| RGB | rgb(184, 96, 59) |
| HSL | hsl(18, 51%, 48%) |
| OKLCH | oklch(58.6% 0.125 42.7) |
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 #B8603B | 4.39:1 | AA large text | Lc -75.6 | Fine for body text |
| Black text on #B8603B | 4.77:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #B8603B text on white | 4.39:1 | AA large text | Lc 70.1 | Content text, not long reading |
| #B8603B text on black | 4.77:1 | AA | Lc -31.6 | 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
#F4E7E1
oklch(93.7% 0.016 46.6)
-
Step 200
200
#ECD3C9
oklch(88.5% 0.031 43.1)
-
Step 300
300
#E1B6A4
oklch(81% 0.056 43.9)
-
Step 400
400
#D18E73
oklch(70.7% 0.091 42.8)
-
Step 500
500
#C3714F
oklch(63.2% 0.114 42.9)
-
Step 600
600 (this color)
#B8603B
oklch(58.6% 0.125 42.7)
-
Step 700
700
#954725
oklch(49.1% 0.115 42.8)
-
Step 800
800
#793B20
oklch(42.7% 0.095 43)
-
Step 900
900
#62331F
oklch(37.7% 0.075 43.1)
-
Step 950
950
#3A1E13
oklch(27% 0.048 41.9)
#B8603B 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) | #786C37 | 0.115 |
| Deuteranopia (no green cones) | #8D803A | 0.107 |
| Tritanopia (no blue cones) | #C94F57 | 0.064 |
| Achromatopsia (no color) | #787878 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B8603B
#B8603B
oklch(58.6% 0.125 42.7)
- #0089AB
#0089AB
oklch(58.5% 0.109 223.3)
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 #B8603B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.024
- Clay #B66A50 ΔE 0.027
- Adobe #BD6C48 ΔE 0.031
- Terra Cotta #C9643B ΔE 0.034
- Rust Orange #C45508 ΔE 0.037
- Terracotta #CA6641 ΔE 0.038
- Burnt Siena #B75203 ΔE 0.040
- Orangey Brown #B16002 ΔE 0.040
Use #B8603B 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.