#57303D
Closest named color: Purple Brown (#673A3F). oklch(36.3% 0.059 359.1), rgb(87, 48, 61).
Aa
White text reads best on this color (11.07:1).
About this color
#57303D is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.059 and its hue 359°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.045 away. White text reads best on it, at 11.07:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.89:1 |
| White text | 11.07:1 |
Values
| HEX | #57303D |
| RGB | rgb(87, 48, 61) |
| HSL | hsl(340, 29%, 26%) |
| OKLCH | oklch(36.3% 0.059 359.1) |
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 #57303D | 11.07:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #57303D | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #57303D text on white | 11.07:1 | AAA | Lc 95.4 | Preferred for body text |
| #57303D text on black | 1.89:1 | 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
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F2E6E9
oklch(93.5% 0.014 0.3)
-
Step 200
200
#E8D3D9
oklch(88.6% 0.025 358.3)
-
Step 300
300
#DAB5C0
oklch(80.9% 0.045 358.4)
-
Step 400
400
#C68E9F
oklch(70.6% 0.071 359.2)
-
Step 500
500
#B77288
oklch(63.2% 0.091 359.4)
-
Step 600
600
#A25972
oklch(55.6% 0.1 359)
-
Step 700
700
#8A495F
oklch(49.1% 0.092 359.4)
-
Step 800
800
#703C4E
oklch(42.6% 0.076 358.7)
-
Step 900
900 (this color)
#57303D
oklch(36.3% 0.059 359.1)
-
Step 950
950
#361F26
oklch(27.2% 0.037 0.2)
#57303D 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) | #35373D | 0.065 |
| Deuteranopia (no green cones) | #3F3E3C | 0.059 |
| Tritanopia (no blue cones) | #5D2E35 | 0.017 |
| Achromatopsia (no color) | #3C3C3C | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57303D
#57303D
oklch(36.3% 0.059 359.1)
- #0F483E
#0F483E
oklch(36.3% 0.06 178.3)
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 #57303D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.066
- Onyx #343A40 ΔE 0.068
- Grape Purple #5D1451 ΔE 0.079
- Burgundy #610023 ΔE 0.084
- Brownish Purple #76424E ΔE 0.084
- Gunmetal #293241 ΔE 0.085
- Chestnut #742802 ΔE 0.086
Use #57303D 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.