#57371C
Closest named color: Mud Brown (#60460F). oklch(36.9% 0.061 59.4), rgb(87, 55, 28).
Aa
White text reads best on this color (10.66:1).
About this color
#57371C is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.061 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.053 away. White text reads best on it, at 10.66:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.96:1 |
| White text | 10.66:1 |
Values
| HEX | #57371C |
| RGB | rgb(87, 55, 28) |
| HSL | hsl(27, 51%, 23%) |
| OKLCH | oklch(36.9% 0.061 59.4) |
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 #57371C | 10.66:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #57371C | 1.96:1 | Fails | Lc 9.3 | Not readable |
| #57371C text on white | 10.66:1 | AAA | Lc 94.6 | Preferred for body text |
| #57371C text on black | 1.96:1 | Fails | Lc -8.0 | Not readable |
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 900.
-
Step 50
50
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F1E8E1
oklch(93.6% 0.014 60.6)
-
Step 200
200
#E6D6C9
oklch(88.6% 0.025 61.6)
-
Step 300
300
#D8BAA4
oklch(80.9% 0.046 58.3)
-
Step 400
400
#C39672
oklch(70.7% 0.073 59.9)
-
Step 500
500
#B37B4D
oklch(63% 0.093 59.3)
-
Step 600
600
#9F6330
oklch(55.6% 0.102 58.6)
-
Step 700
700
#885222
oklch(49.1% 0.095 59.1)
-
Step 800
800
#6E431E
oklch(42.6% 0.078 58.9)
-
Step 900
900 (this color)
#57371C
oklch(36.9% 0.061 59.4)
-
Step 950
950
#342212
oklch(27% 0.038 61.7)
#57371C 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) | #413A19 | 0.043 |
| Deuteranopia (no green cones) | #48411C | 0.040 |
| Tritanopia (no blue cones) | #5F3031 | 0.045 |
| Achromatopsia (no color) | #3E3E3E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57371C
#57371C
oklch(36.9% 0.061 59.4)
- #1D435C
#1D435C
oklch(36.7% 0.061 240.1)
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 #57371C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.053
- Purple Brown #673A3F ΔE 0.061
- Chestnut #742802 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.067
- Dark Olive #373E02 ΔE 0.072
- Onyx #343A40 ΔE 0.078
- Green Brown #544E03 ΔE 0.078
- Reddy Brown #6E1005 ΔE 0.083
Use #57371C 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.