#573C18
Closest named color: Mud Brown (#60460F). oklch(37.9% 0.063 71.5), rgb(87, 60, 24).
Aa
White text reads best on this color (10.17:1).
About this color
#573C18 is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.063 and its hue 72°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.038 away. White text reads best on it, at 10.17:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.06:1 |
| White text | 10.17:1 |
Values
| HEX | #573C18 |
| RGB | rgb(87, 60, 24) |
| HSL | hsl(34, 57%, 22%) |
| OKLCH | oklch(37.9% 0.063 71.5) |
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 #573C18 | 10.17:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #573C18 | 2.06:1 | Fails | Lc 10.5 | Not readable |
| #573C18 text on white | 10.17:1 | AAA | Lc 93.5 | Preferred for body text |
| #573C18 text on black | 2.06:1 | Fails | Lc -9.0 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E9E0
oklch(93.7% 0.014 74.4)
-
Step 200
200
#E4D7C7
oklch(88.5% 0.026 73.2)
-
Step 300
300
#D4BCA0
oklch(80.8% 0.047 71.4)
-
Step 400
400
#BF996B
oklch(70.7% 0.077 71.4)
-
Step 500
500
#AE7F42
oklch(63.1% 0.097 71.6)
-
Step 600
600
#996820
oklch(55.6% 0.105 72.1)
-
Step 700
700
#835611
oklch(49.1% 0.098 71.6)
-
Step 800
800
#6A4713
oklch(42.8% 0.081 72.4)
-
Step 900
900 (this color)
#573C18
oklch(37.9% 0.063 71.5)
-
Step 950
950
#33230F
oklch(27.1% 0.04 70.8)
#573C18 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) | #453D14 | 0.035 |
| Deuteranopia (no green cones) | #4C4419 | 0.030 |
| Tritanopia (no blue cones) | #5F3534 | 0.052 |
| Achromatopsia (no color) | #414141 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573C18
#573C18
oklch(37.9% 0.063 71.5)
- #274463
#274463
oklch(37.9% 0.064 251.3)
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 #573C18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.038
- Green Brown #544E03 ΔE 0.061
- Dark Olive #373E02 ΔE 0.065
- Purple Brown #673A3F ΔE 0.067
- Chestnut #742802 ΔE 0.069
- Charcoal Grey #3C4142 ΔE 0.069
- Olive Brown #645403 ΔE 0.082
- Onyx #343A40 ΔE 0.084
Use #573C18 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.