#573A3D
Closest named color: Purple Brown (#673A3F). oklch(38.3% 0.041 12.4), rgb(87, 58, 61).
Aa
White text reads best on this color (10.10:1).
About this color
#573A3D is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.041 and its hue 12°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.032 away. White text reads best on it, at 10.10:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.07:1 |
| White text | 10.10:1 |
Values
| HEX | #573A3D |
| RGB | rgb(87, 58, 61) |
| HSL | hsl(354, 20%, 28%) |
| OKLCH | oklch(38.3% 0.041 12.4) |
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 #573A3D | 10.10:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #573A3D | 2.07:1 | Fails | Lc 10.5 | Not readable |
| #573A3D text on white | 10.10:1 | AAA | Lc 93.4 | Preferred for body text |
| #573A3D text on black | 2.07:1 | Fails | Lc -9.1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E8
oklch(93.5% 0.01 9.5)
-
Step 200
200
#E4D5D6
oklch(88.5% 0.017 12.8)
-
Step 300
300
#D4B9BB
oklch(80.9% 0.031 12.7)
-
Step 400
400
#BD9498
oklch(70.6% 0.05 11.9)
-
Step 500
500
#AC7A7F
oklch(63.1% 0.063 12.4)
-
Step 600
600
#976268
oklch(55.5% 0.069 12.2)
-
Step 700
700
#815157
oklch(49.1% 0.065 11.6)
-
Step 800
800
#694347
oklch(42.8% 0.053 12.6)
-
Step 900
900 (this color)
#573A3D
oklch(38.3% 0.041 12.4)
-
Step 950
950
#322123
oklch(27% 0.026 11.2)
#573A3D 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) | #3F3E3D | 0.044 |
| Deuteranopia (no green cones) | #46443C | 0.042 |
| Tritanopia (no blue cones) | #5C373B | 0.012 |
| Achromatopsia (no color) | #424242 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573A3D
#573A3D
oklch(38.3% 0.041 12.4)
- #274A49
#274A49
oklch(38.2% 0.041 193.2)
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 #573A3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.049
- Onyx #343A40 ΔE 0.063
- Brownish Purple #76424E ΔE 0.071
- Mud Brown #60460F ΔE 0.079
- Dark Slate Gray #2F4F4F ΔE 0.082
- Charcoal #264653 ΔE 0.082
- Chestnut #742802 ΔE 0.082
Use #573A3D 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.