#57313B
Closest named color: Purple Brown (#673A3F). oklch(36.4% 0.057 3.3), rgb(87, 49, 59).
Aa
White text reads best on this color (11.00:1).
About this color
#57313B is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.057 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.043 away. White text reads best on it, at 11.00:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.90:1 |
| White text | 11.00:1 |
Values
| HEX | #57313B |
| RGB | rgb(87, 49, 59) |
| HSL | hsl(344, 28%, 27%) |
| OKLCH | oklch(36.4% 0.057 3.3) |
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 #57313B | 11.00:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #57313B | 1.90:1 | Fails | Lc 8.6 | Not readable |
| #57313B text on white | 11.00:1 | AAA | Lc 95.3 | Preferred for body text |
| #57313B text on black | 1.90:1 | Fails | Lc -7.4 | 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
#F2E7E9
oklch(93.7% 0.012 4.8)
-
Step 200
200
#E8D3D7
oklch(88.5% 0.024 4.5)
-
Step 300
300
#DAB6BE
oklch(81% 0.043 3.1)
-
Step 400
400
#C68F9C
oklch(70.7% 0.069 3.4)
-
Step 500
500
#B67384
oklch(63.1% 0.087 3.4)
-
Step 600
600
#A15B6E
oklch(55.7% 0.094 3.2)
-
Step 700
700
#8A4A5B
oklch(49.1% 0.089 3.9)
-
Step 800
800
#703D4B
oklch(42.7% 0.073 3)
-
Step 900
900 (this color)
#57313B
oklch(36.4% 0.057 3.3)
-
Step 950
950
#351F25
oklch(27% 0.035 2)
#57313B 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) | #37383B | 0.062 |
| Deuteranopia (no green cones) | #403F3A | 0.058 |
| Tritanopia (no blue cones) | #5D2E35 | 0.015 |
| Achromatopsia (no color) | #3C3C3C | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57313B
#57313B
oklch(36.4% 0.057 3.3)
- #114841
#114841
oklch(36.5% 0.057 182.9)
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 #57313B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.063
- Onyx #343A40 ΔE 0.066
- Chestnut #742802 ΔE 0.082
- Brownish Purple #76424E ΔE 0.083
- Grape Purple #5D1451 ΔE 0.084
- Reddy Brown #6E1005 ΔE 0.084
- Gunmetal #293241 ΔE 0.085
Use #57313B 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.