#573E1B
Closest named color: Mud Brown (#60460F). oklch(38.4% 0.061 73.4), rgb(87, 62, 27).
Aa
White text reads best on this color (9.95:1).
About this color
#573E1B is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.061 and its hue 73°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.034 away. White text reads best on it, at 9.95:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.11:1 |
| White text | 9.95:1 |
Values
| HEX | #573E1B |
| RGB | rgb(87, 62, 27) |
| HSL | hsl(35, 53%, 22%) |
| OKLCH | oklch(38.4% 0.061 73.4) |
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 #573E1B | 9.95:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #573E1B | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #573E1B text on white | 9.95:1 | AAA | Lc 93.0 | Preferred for body text |
| #573E1B text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E0
oklch(93.6% 0.014 78.3)
-
Step 200
200
#E4D7C7
oklch(88.5% 0.026 73.2)
-
Step 300
300
#D3BDA1
oklch(81% 0.046 73.8)
-
Step 400
400
#BD9A6D
oklch(70.8% 0.074 73.2)
-
Step 500
500
#AC8045
oklch(63.1% 0.094 72.8)
-
Step 600
600
#976924
oklch(55.6% 0.102 73.3)
-
Step 700
700
#815716
oklch(49.1% 0.095 72.9)
-
Step 800
800
#694716
oklch(42.7% 0.078 72.2)
-
Step 900
900 (this color)
#573E1B
oklch(38.4% 0.061 73.4)
-
Step 950
950
#322310
oklch(26.9% 0.038 71.5)
#573E1B 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) | #473F17 | 0.031 |
| Deuteranopia (no green cones) | #4D451C | 0.027 |
| Tritanopia (no blue cones) | #5F3836 | 0.050 |
| Achromatopsia (no color) | #434343 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573E1B
#573E1B
oklch(38.4% 0.061 73.4)
- #2B4563
#2B4563
oklch(38.4% 0.061 252.9)
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 #573E1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.034
- Green Brown #544E03 ΔE 0.057
- Dark Olive #373E02 ΔE 0.066
- Purple Brown #673A3F ΔE 0.066
- Charcoal Grey #3C4142 ΔE 0.068
- Chestnut #742802 ΔE 0.071
- Olive Brown #645403 ΔE 0.077
- Onyx #343A40 ΔE 0.084
Use #573E1B 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.