#573B1C
Closest named color: Mud Brown (#60460F). oklch(37.7% 0.06 67), rgb(87, 59, 28).
Aa
White text reads best on this color (10.25:1).
About this color
#573B1C is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.060 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.042 away. White text reads best on it, at 10.25:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.060) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #573B1C |
| RGB | rgb(87, 59, 28) |
| HSL | hsl(32, 51%, 23%) |
| OKLCH | oklch(37.7% 0.06 67) |
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 #573B1C | 10.25:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #573B1C | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #573B1C text on white | 10.25:1 | AAA | Lc 93.7 | Preferred for body text |
| #573B1C text on black | 2.04:1 | Fails | Lc -8.8 | 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
#E5D6C8
oklch(88.4% 0.025 65.5)
-
Step 300
300
#D5BCA2
oklch(81% 0.046 68.2)
-
Step 400
400
#BF9870
oklch(70.6% 0.072 66.9)
-
Step 500
500
#AF7E49
oklch(63.1% 0.093 66.9)
-
Step 600
600
#9A672B
oklch(55.7% 0.1 67.3)
-
Step 700
700
#84551D
oklch(49.1% 0.094 66.6)
-
Step 800
800
#6B461A
oklch(42.7% 0.077 67.4)
-
Step 900
900 (this color)
#573B1C
oklch(37.7% 0.06 67)
-
Step 950
950
#332311
oklch(27.1% 0.038 68.3)
#573B1C 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) | #443D19 | 0.037 |
| Deuteranopia (no green cones) | #4B431D | 0.031 |
| Tritanopia (no blue cones) | #5F3434 | 0.048 |
| Achromatopsia (no color) | #414141 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B1C
#573B1C
oklch(37.7% 0.06 67)
- #254460
#254460
oklch(37.6% 0.061 247.4)
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 #573B1C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.042
- Purple Brown #673A3F ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.066
- Green Brown #544E03 ΔE 0.066
- Chestnut #742802 ΔE 0.067
- Dark Olive #373E02 ΔE 0.068
- Onyx #343A40 ΔE 0.080
- Olive Brown #645403 ΔE 0.086
Use #573B1C 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.