#57321B
Closest named color: Chestnut (#742802). oklch(35.8% 0.064 51.3), rgb(87, 50, 27).
Aa
White text reads best on this color (11.18:1).
About this color
#57321B is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.064 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.060 away. White text reads best on it, at 11.18:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.87:1 |
| White text | 11.18:1 |
Values
| HEX | #57321B |
| RGB | rgb(87, 50, 27) |
| HSL | hsl(23, 53%, 22%) |
| OKLCH | oklch(35.8% 0.064 51.3) |
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 #57321B | 11.18:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #57321B | 1.87:1 | Fails | Lc 8.3 | Not readable |
| #57321B text on white | 11.18:1 | AAA | Lc 95.6 | Preferred for body text |
| #57321B text on black | 1.87:1 | 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
#E8D5CA
oklch(88.6% 0.026 52.2)
-
Step 300
300
#DBB8A5
oklch(80.8% 0.048 50.2)
-
Step 400
400
#C89374
oklch(70.7% 0.077 51.4)
-
Step 500
500
#B97750
oklch(63% 0.099 50.7)
-
Step 600
600
#A45F33
oklch(55.5% 0.107 51.4)
-
Step 700
700
#8C4E26
oklch(49% 0.099 51.2)
-
Step 800
800
#724021
oklch(42.6% 0.083 50.7)
-
Step 900
900 (this color)
#57321B
oklch(35.8% 0.064 51.3)
-
Step 950
950
#362013
oklch(26.9% 0.041 50.9)
#57321B 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) | #3C3619 | 0.054 |
| Deuteranopia (no green cones) | #453E1B | 0.048 |
| Tritanopia (no blue cones) | #5F2B2D | 0.040 |
| Achromatopsia (no color) | #3B3B3B | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57321B
#57321B
oklch(35.8% 0.064 51.3)
- #0F4258
#0F4258
oklch(35.7% 0.064 231.6)
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 #57321B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.060
- Purple Brown #673A3F ΔE 0.063
- Mud Brown #60460F ΔE 0.067
- Charcoal Grey #3C4142 ΔE 0.072
- Reddy Brown #6E1005 ΔE 0.073
- Onyx #343A40 ΔE 0.078
- Dark Olive #373E02 ΔE 0.079
- Pakistan Green #283618 ΔE 0.088
Use #57321B 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.