#57503E
Closest named color: Mud Brown (#60460F). oklch(43.3% 0.03 89.3), rgb(87, 80, 62).
Aa
White text reads best on this color (8.00:1).
About this color
#57503E is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Mud Brown (#60460F), ΔE 0.052 away. White text reads best on it, at 8.00:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #57503E |
| RGB | rgb(87, 80, 62) |
| HSL | hsl(43, 17%, 29%) |
| OKLCH | oklch(43.3% 0.03 89.3) |
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 #57503E | 8.00:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #57503E | 2.62:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #57503E text on white | 8.00:1 | AAA | Lc 87.8 | Fine for body text |
| #57503E text on black | 2.62:1 | Fails | Lc -14.4 | 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 800.
-
Step 50
50
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE6
oklch(93.7% 0.005 95.1)
-
Step 200
200
#DBD9D2
oklch(88.5% 0.01 93.6)
-
Step 300
300
#C5C0B4
oklch(80.8% 0.017 88)
-
Step 400
400
#A7A08D
oklch(70.6% 0.028 90.2)
-
Step 500
500
#928971
oklch(63.1% 0.036 89.9)
-
Step 600
600
#7C735A
oklch(55.7% 0.038 90.6)
-
Step 700
700
#69604A
oklch(49.1% 0.035 88.4)
-
Step 800
800 (this color)
#57503E
oklch(43.3% 0.03 89.3)
-
Step 900
900
#464134
oklch(37.6% 0.022 89.5)
-
Step 950
950
#29261E
oklch(26.9% 0.015 89.9)
#57503E 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) | #544F3D | 0.006 |
| Deuteranopia (no green cones) | #56513F | 0.003 |
| Tritanopia (no blue cones) | #5B4D4B | 0.027 |
| Achromatopsia (no color) | #505050 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57503E
#57503E
oklch(43.3% 0.03 89.3)
- #4A5061
#4A5061
oklch(43.2% 0.029 269.9)
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 #57503E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.052
- Green Brown #544E03 ΔE 0.061
- Dark Slate Gray #2F4F4F ΔE 0.062
- Olive Brown #645403 ΔE 0.064
- Purple Brown #673A3F ΔE 0.069
- Charcoal Grey #3C4142 ΔE 0.070
- Pine #2B5D34 ΔE 0.075
- Army Green #4B5D16 ΔE 0.076
Use #57503E 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.