#573F2E
Closest named color: Purple Brown (#673A3F). oklch(39% 0.043 56.4), rgb(87, 63, 46).
Aa
White text reads best on this color (9.74:1).
About this color
#573F2E is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.043 and its hue 56°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.047 away. White text reads best on it, at 9.74:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.15:1 |
| White text | 9.74:1 |
Values
| HEX | #573F2E |
| RGB | rgb(87, 63, 46) |
| HSL | hsl(25, 31%, 26%) |
| OKLCH | oklch(39% 0.043 56.4) |
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 #573F2E | 9.74:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #573F2E | 2.15:1 | Fails | Lc 11.4 | Not readable |
| #573F2E text on white | 9.74:1 | AAA | Lc 92.5 | Preferred for body text |
| #573F2E text on black | 2.15:1 | Fails | Lc -9.9 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E3D6CE
oklch(88.4% 0.018 54)
-
Step 300
300
#D2BCAD
oklch(81% 0.033 56.5)
-
Step 400
400
#BA9982
oklch(70.7% 0.051 56.6)
-
Step 500
500
#A97F62
oklch(63% 0.067 55.8)
-
Step 600
600
#946849
oklch(55.6% 0.072 55.8)
-
Step 700
700
#7E573A
oklch(49.2% 0.067 57.1)
-
Step 800
800
#664730
oklch(42.6% 0.055 57.2)
-
Step 900
900 (this color)
#573F2E
oklch(39% 0.043 56.4)
-
Step 950
950
#312319
oklch(27% 0.028 56.8)
#573F2E 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) | #46412D | 0.031 |
| Deuteranopia (no green cones) | #4C462E | 0.028 |
| Tritanopia (no blue cones) | #5E3A3B | 0.032 |
| Achromatopsia (no color) | #444444 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F2E
#573F2E
oklch(39% 0.043 56.4)
- #2E4959
#2E4959
oklch(39.1% 0.043 235.4)
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 #573F2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.047
- Mud Brown #60460F ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.053
- Green Brown #544E03 ΔE 0.071
- Onyx #343A40 ΔE 0.072
- Chestnut #742802 ΔE 0.075
- Dark Slate Gray #2F4F4F ΔE 0.077
- Brownish Purple #76424E ΔE 0.080
Use #573F2E 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.