#573A42
Closest named color: Purple Brown (#673A3F). oklch(38.5% 0.043 1.2), rgb(87, 58, 66).
Aa
White text reads best on this color (10.05:1).
About this color
#573A42 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.043 and its hue 1°. 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 10.05:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #573A42 |
| RGB | rgb(87, 58, 66) |
| HSL | hsl(343, 20%, 28%) |
| OKLCH | oklch(38.5% 0.043 1.2) |
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 #573A42 | 10.05:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #573A42 | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #573A42 text on white | 10.05:1 | AAA | Lc 93.3 | Preferred for body text |
| #573A42 text on black | 2.08:1 | Fails | Lc -9.2 | 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
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E4D4D8
oklch(88.4% 0.018 0.4)
-
Step 300
300
#D3B8BF
oklch(80.8% 0.032 0.4)
-
Step 400
400
#BD949E
oklch(70.8% 0.051 2.2)
-
Step 500
500
#AB7987
oklch(63% 0.065 0.8)
-
Step 600
600
#966271
oklch(55.7% 0.07 0.8)
-
Step 700
700
#80515E
oklch(49.2% 0.065 1.8)
-
Step 800
800
#68424D
oklch(42.6% 0.055 0.9)
-
Step 900
900 (this color)
#573A42
oklch(38.5% 0.043 1.2)
-
Step 950
950
#322126
oklch(27.1% 0.027 359.8)
#573A42 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) | #3E3F42 | 0.046 |
| Deuteranopia (no green cones) | #454441 | 0.043 |
| Tritanopia (no blue cones) | #5C383D | 0.012 |
| Achromatopsia (no color) | #424242 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573A42
#573A42
oklch(38.5% 0.043 1.2)
- #284B45
#284B45
oklch(38.4% 0.042 181.7)
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 #573A42, 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 0.051
- Onyx #343A40 ΔE 0.063
- Brownish Purple #76424E ΔE 0.068
- Charcoal #264653 ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.081
- Dark Slate Gray #2F4F4F ΔE 0.082
- Mud Brown #60460F ΔE 0.086
Use #573A42 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.