#B15C28
Closest named color: Copper (#B66325). oklch(56.7% 0.128 49), rgb(177, 92, 40).
Aa
White text reads best on this color (4.73:1).
About this color
#B15C28 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.128 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.021 away. White text reads best on it, at 4.73:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #B15C28 |
| RGB | rgb(177, 92, 40) |
| HSL | hsl(23, 63%, 43%) |
| OKLCH | oklch(56.7% 0.128 49) |
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 #B15C28 | 4.73:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #B15C28 | 4.43:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #B15C28 text on white | 4.73:1 | AA | Lc 72.4 | Content text, not long reading |
| #B15C28 text on black | 4.43:1 | AA large text | Lc -29.2 | Dividers and decoration only |
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
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#ECD3C7
oklch(88.4% 0.032 47.3)
-
Step 300
300
#E0B6A0
oklch(80.8% 0.058 49.1)
-
Step 400
400
#D08F6D
oklch(70.7% 0.092 48.4)
-
Step 500
500
#C27245
oklch(63.1% 0.118 48.9)
-
Step 600
600 (this color)
#B15C28
oklch(56.7% 0.128 49)
-
Step 700
700
#954816
oklch(49.1% 0.119 48.8)
-
Step 800
800
#793C16
oklch(42.8% 0.098 49)
-
Step 900
900
#623419
oklch(37.8% 0.077 49.2)
-
Step 950
950
#391F10
oklch(27% 0.048 49.7)
#B15C28 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) | #746721 | 0.112 |
| Deuteranopia (no green cones) | #897A27 | 0.100 |
| Tritanopia (no blue cones) | #C24A51 | 0.075 |
| Achromatopsia (no color) | #737373 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B15C28
#B15C28
oklch(56.7% 0.128 49)
- #0082AB
#0082AB
oklch(56.7% 0.112 229.2)
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 #B15C28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.021
- Orangey Brown #B16002 ΔE 0.024
- Burnt Siena #B75203 ΔE 0.024
- Raw Umber #A75E09 ΔE 0.028
- Umber #B26400 ΔE 0.031
- Earth #A2653E ΔE 0.033
- Cinnamon #AC4F06 ΔE 0.033
- Burnt Orange #C04E01 ΔE 0.036
Use #B15C28 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.