#573C1B
Closest named color: Mud Brown (#60460F). oklch(37.9% 0.061 69.6), rgb(87, 60, 27).
Aa
White text reads best on this color (10.15:1).
About this color
#573C1B is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.061 and its hue 70°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.039 away. White text reads best on it, at 10.15:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #573C1B |
| RGB | rgb(87, 60, 27) |
| HSL | hsl(33, 53%, 22%) |
| OKLCH | oklch(37.9% 0.061 69.6) |
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 #573C1B | 10.15:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #573C1B | 2.06:1 | Fails | Lc 10.5 | Not readable |
| #573C1B text on white | 10.15:1 | AAA | Lc 93.5 | Preferred for body text |
| #573C1B 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
#F0E8E1
oklch(93.5% 0.013 63.9)
-
Step 200
200
#E4D7C8
oklch(88.6% 0.025 71.4)
-
Step 300
300
#D4BCA1
oklch(80.9% 0.046 70.4)
-
Step 400
400
#BF996E
oklch(70.8% 0.074 69.6)
-
Step 500
500
#AE7F47
oklch(63.1% 0.093 69.6)
-
Step 600
600
#996727
oklch(55.5% 0.101 69.2)
-
Step 700
700
#835619
oklch(49.2% 0.095 69.7)
-
Step 800
800
#6A4618
oklch(42.6% 0.078 69.1)
-
Step 900
900 (this color)
#573C1B
oklch(37.9% 0.061 69.6)
-
Step 950
950
#332310
oklch(27.1% 0.039 69.6)
#573C1B 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) | #453E18 | 0.035 |
| Deuteranopia (no green cones) | #4C441C | 0.030 |
| Tritanopia (no blue cones) | #5F3535 | 0.051 |
| Achromatopsia (no color) | #414141 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573C1B
#573C1B
oklch(37.9% 0.061 69.6)
- #274461
#274461
oklch(37.8% 0.061 249.7)
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 #573C1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.039
- Green Brown #544E03 ΔE 0.063
- Purple Brown #673A3F ΔE 0.064
- Dark Olive #373E02 ΔE 0.067
- Charcoal Grey #3C4142 ΔE 0.067
- Chestnut #742802 ΔE 0.068
- Onyx #343A40 ΔE 0.082
- Olive Brown #645403 ΔE 0.083
Use #573C1B 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.