#B15D33
Closest named color: Copper (#B66325). oklch(57% 0.123 45.7), rgb(177, 93, 51).
Aa
White text reads best on this color (4.68:1).
About this color
#B15D33 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.123 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.024 away. White text reads best on it, at 4.68:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #B15D33 |
| RGB | rgb(177, 93, 51) |
| HSL | hsl(20, 55%, 45%) |
| OKLCH | oklch(57% 0.123 45.7) |
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 #B15D33 | 4.68:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #B15D33 | 4.48:1 | AA large text | Lc 32.0 | Non-text elements, placeholder text |
| #B15D33 text on white | 4.68:1 | AA | Lc 72.1 | Content text, not long reading |
| #B15D33 text on black | 4.48:1 | AA large text | Lc -29.6 | 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
#F4E7E1
oklch(93.7% 0.016 46.6)
-
Step 200
200
#EBD3C9
oklch(88.4% 0.03 44)
-
Step 300
300
#E0B6A3
oklch(80.9% 0.056 45.6)
-
Step 400
400
#CF8F72
oklch(70.7% 0.088 45.2)
-
Step 500
500
#C1724C
oklch(63.1% 0.113 45.8)
-
Step 600
600 (this color)
#B15D33
oklch(57% 0.123 45.7)
-
Step 700
700
#944821
oklch(49.1% 0.115 45.4)
-
Step 800
800
#783C1D
oklch(42.7% 0.094 46.1)
-
Step 900
900
#61341E
oklch(37.7% 0.073 45.8)
-
Step 950
950
#391F12
oklch(27.1% 0.046 46.7)
#B15D33 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) | #74682E | 0.111 |
| Deuteranopia (no green cones) | #887B32 | 0.102 |
| Tritanopia (no blue cones) | #C24C54 | 0.069 |
| Achromatopsia (no color) | #747474 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B15D33
#B15D33
oklch(57% 0.123 45.7)
- #0084A8
#0084A8
oklch(57.1% 0.109 225.6)
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 #B15D33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.024
- Earth #A2653E ΔE 0.030
- Burnt Siena #B75203 ΔE 0.030
- Orangey Brown #B16002 ΔE 0.032
- Raw Umber #A75E09 ΔE 0.036
- Umber #B26400 ΔE 0.038
- Cinnamon #AC4F06 ΔE 0.039
- Rust Orange #C45508 ΔE 0.039
Use #B15D33 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.