#573A2A
Closest named color: Purple Brown (#673A3F). oklch(37.8% 0.049 49.7), rgb(87, 58, 42).
Aa
White text reads best on this color (10.27:1).
About this color
#573A2A is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.049 and its hue 50°. 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 10.27:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.049) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #573A2A |
| RGB | rgb(87, 58, 42) |
| HSL | hsl(21, 35%, 25%) |
| OKLCH | oklch(37.8% 0.049 49.7) |
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 #573A2A | 10.27:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #573A2A | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #573A2A text on white | 10.27:1 | AAA | Lc 93.8 | Preferred for body text |
| #573A2A 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
#F8F4F3
oklch(97% 0.005 34.3)
-
Step 100
100
#F0E8E4
oklch(93.6% 0.01 48.6)
-
Step 200
200
#E5D6CE
oklch(88.6% 0.02 50.1)
-
Step 300
300
#D5BAAC
oklch(80.8% 0.037 49.2)
-
Step 400
400
#BF9680
oklch(70.6% 0.059 49.6)
-
Step 500
500
#AF7C60
oklch(63.1% 0.075 49.7)
-
Step 600
600
#9A6547
oklch(55.7% 0.081 50)
-
Step 700
700
#835338
oklch(49% 0.076 49.6)
-
Step 800
800
#6B442F
oklch(42.6% 0.063 48.8)
-
Step 900
900 (this color)
#573A2A
oklch(37.8% 0.049 49.7)
-
Step 950
950
#332219
oklch(27% 0.031 48.9)
#573A2A 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) | #423D29 | 0.040 |
| Deuteranopia (no green cones) | #49432A | 0.036 |
| Tritanopia (no blue cones) | #5E3536 | 0.031 |
| Achromatopsia (no color) | #414141 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573A2A
#573A2A
oklch(37.8% 0.049 49.7)
- #244757
#244757
oklch(37.9% 0.049 229.6)
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 #573A2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.056
- Mud Brown #60460F ΔE 0.056
- Chestnut #742802 ΔE 0.068
- Onyx #343A40 ΔE 0.070
- Green Brown #544E03 ΔE 0.081
- Dark Olive #373E02 ΔE 0.081
- Brownish Purple #76424E ΔE 0.085
Use #573A2A 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.