#573310
Closest named color: Mud Brown (#60460F). oklch(35.9% 0.071 61), rgb(87, 51, 16).
Aa
White text reads best on this color (11.13:1).
About this color
#573310 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.071 and its hue 61°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.060 away. White text reads best on it, at 11.13:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.88:1 |
| White text | 11.13:1 |
Values
| HEX | #573310 |
| RGB | rgb(87, 51, 16) |
| HSL | hsl(30, 69%, 20%) |
| OKLCH | oklch(35.9% 0.071 61) |
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 #573310 | 11.13:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #573310 | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #573310 text on white | 11.13:1 | AAA | Lc 95.5 | Preferred for body text |
| #573310 text on black | 1.88:1 | Fails | Lc 0.0 | 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
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E8E0
oklch(93.7% 0.015 61.3)
-
Step 200
200
#E8D5C6
oklch(88.4% 0.029 60.7)
-
Step 300
300
#DBB99F
oklch(80.9% 0.053 59.3)
-
Step 400
400
#C79469
oklch(70.5% 0.085 60.9)
-
Step 500
500
#B8793F
oklch(63% 0.108 61.3)
-
Step 600
600
#A4611B
oklch(55.7% 0.118 61.2)
-
Step 700
700
#8C500B
oklch(49.2% 0.109 61.5)
-
Step 800
800
#72420F
oklch(42.8% 0.091 61.5)
-
Step 900
900 (this color)
#573310
oklch(35.9% 0.071 61)
-
Step 950
950
#36210E
oklch(27% 0.044 61.2)
#573310 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) | #3E360B | 0.051 |
| Deuteranopia (no green cones) | #473F10 | 0.046 |
| Tritanopia (no blue cones) | #602B2C | 0.052 |
| Achromatopsia (no color) | #3B3B3B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573310
#573310
oklch(35.9% 0.071 61)
- #13415E
#13415E
oklch(35.9% 0.07 240.7)
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 #573310, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.060
- Chestnut #742802 ΔE 0.061
- Dark Olive #373E02 ΔE 0.071
- Purple Brown #673A3F ΔE 0.072
- Reddy Brown #6E1005 ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.078
- Green Brown #544E03 ΔE 0.083
- Onyx #343A40 ΔE 0.085
Use #573310 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.