#57331F
Closest named color: Purple Brown (#673A3F). oklch(36.1% 0.061 49), rgb(87, 51, 31).
Aa
White text reads best on this color (11.06:1).
About this color
#57331F is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.061 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.059 away. White text reads best on it, at 11.06:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.89:1 |
| White text | 11.06:1 |
Values
| HEX | #57331F |
| RGB | rgb(87, 51, 31) |
| HSL | hsl(21, 47%, 23%) |
| OKLCH | oklch(36.1% 0.061 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 #57331F | 11.06:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #57331F | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #57331F text on white | 11.06:1 | AAA | Lc 95.4 | Preferred for body text |
| #57331F text on black | 1.89:1 | Fails | Lc 0.0 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E2
oklch(93.5% 0.014 46.2)
-
Step 200
200
#E8D5CB
oklch(88.6% 0.025 49.7)
-
Step 300
300
#DAB9A7
oklch(81% 0.046 50.3)
-
Step 400
400
#C79378
oklch(70.7% 0.074 48.5)
-
Step 500
500
#B77855
oklch(63.1% 0.093 49.5)
-
Step 600
600
#A3603A
oklch(55.7% 0.102 49.1)
-
Step 700
700
#8B4F2C
oklch(49.1% 0.094 49.5)
-
Step 800
800
#714126
oklch(42.7% 0.078 49)
-
Step 900
900 (this color)
#57331F
oklch(36.1% 0.061 49)
-
Step 950
950
#362115
oklch(27.1% 0.039 50.3)
#57331F 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) | #3D371D | 0.051 |
| Deuteranopia (no green cones) | #463F1F | 0.047 |
| Tritanopia (no blue cones) | #5F2C2E | 0.037 |
| Achromatopsia (no color) | #3C3C3C | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57331F
#57331F
oklch(36.1% 0.061 49)
- #124357
#124357
oklch(36.1% 0.061 229.5)
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 #57331F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.059
- Chestnut #742802 ΔE 0.061
- Mud Brown #60460F ΔE 0.066
- Charcoal Grey #3C4142 ΔE 0.068
- Reddy Brown #6E1005 ΔE 0.074
- Onyx #343A40 ΔE 0.075
- Dark Olive #373E02 ΔE 0.080
- Pakistan Green #283618 ΔE 0.089
Use #57331F 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.