#573B23
Closest named color: Mud Brown (#60460F). oklch(37.9% 0.054 60.7), rgb(87, 59, 35).
Aa
White text reads best on this color (10.21:1).
About this color
#573B23 is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.054 and its hue 61°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.047 away. White text reads best on it, at 10.21:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.05:1 |
| White text | 10.21:1 |
Values
| HEX | #573B23 |
| RGB | rgb(87, 59, 35) |
| HSL | hsl(28, 43%, 24%) |
| OKLCH | oklch(37.9% 0.054 60.7) |
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 #573B23 | 10.21:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #573B23 | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #573B23 text on white | 10.21:1 | AAA | Lc 93.6 | Preferred for body text |
| #573B23 text on black | 2.05:1 | Fails | Lc -8.9 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E2
oklch(93.6% 0.012 59.6)
-
Step 200
200
#E5D6CB
oklch(88.5% 0.022 58.8)
-
Step 300
300
#D5BBA7
oklch(80.9% 0.041 59.7)
-
Step 400
400
#BF9878
oklch(70.8% 0.064 60.9)
-
Step 500
500
#AE7E54
oklch(63.1% 0.083 61.6)
-
Step 600
600
#9A6639
oklch(55.6% 0.09 60.2)
-
Step 700
700
#83552B
oklch(49.2% 0.084 61.2)
-
Step 800
800
#6B4525
oklch(42.7% 0.07 59.4)
-
Step 900
900 (this color)
#573B23
oklch(37.9% 0.054 60.7)
-
Step 950
950
#332215
oklch(26.9% 0.034 58.1)
#573B23 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) | #443D21 | 0.036 |
| Deuteranopia (no green cones) | #4A4323 | 0.033 |
| Tritanopia (no blue cones) | #5F3535 | 0.040 |
| Achromatopsia (no color) | #414141 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B23
#573B23
oklch(37.9% 0.054 60.7)
- #26465C
#26465C
oklch(38% 0.053 240.2)
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 #573B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.047
- Purple Brown #673A3F ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.061
- Chestnut #742802 ΔE 0.067
- Green Brown #544E03 ΔE 0.071
- Dark Olive #373E02 ΔE 0.073
- Onyx #343A40 ΔE 0.075
- Dark Slate Gray #2F4F4F ΔE 0.089
Use #573B23 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.