#57423C
Closest named color: Purple Brown (#673A3F). oklch(40% 0.031 36.5), rgb(87, 66, 60).
Aa
White text reads best on this color (9.33:1).
About this color
#57423C is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.031 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.038 away. White text reads best on it, at 9.33:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.33:1 |
Values
| HEX | #57423C |
| RGB | rgb(87, 66, 60) |
| HSL | hsl(13, 18%, 29%) |
| OKLCH | oklch(40% 0.031 36.5) |
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 #57423C | 9.33:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #57423C | 2.24:1 | Fails | Lc 12.4 | Not readable |
| #57423C text on white | 9.33:1 | AAA | Lc 91.5 | Preferred for body text |
| #57423C text on black | 2.24:1 | Fails | Lc -10.8 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EEE8E7
oklch(93.5% 0.007 28.8)
-
Step 200
200
#E1D6D3
oklch(88.4% 0.013 35.7)
-
Step 300
300
#CFBCB6
oklch(80.9% 0.023 38.3)
-
Step 400
400
#B69991
oklch(70.7% 0.037 35.9)
-
Step 500
500
#A48075
oklch(63.1% 0.048 37.7)
-
Step 600
600
#8F695E
oklch(55.6% 0.052 36.8)
-
Step 700
700
#79574E
oklch(49% 0.048 35.4)
-
Step 800
800
#634740
oklch(42.6% 0.04 34.5)
-
Step 900
900 (this color)
#57423C
oklch(40% 0.031 36.5)
-
Step 950
950
#2F2320
oklch(26.9% 0.019 34.4)
#57423C 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) | #47443C | 0.028 |
| Deuteranopia (no green cones) | #4C483C | 0.026 |
| Tritanopia (no blue cones) | #5C3F40 | 0.016 |
| Achromatopsia (no color) | #474747 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57423C
#57423C
oklch(40% 0.031 36.5)
- #344C53
#344C53
oklch(40% 0.032 217.8)
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 #57423C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.048
- Mud Brown #60460F ΔE 0.061
- Brownish Purple #76424E ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.068
- Onyx #343A40 ΔE 0.070
- Charcoal #264653 ΔE 0.079
- Dark Grey Blue #29465B ΔE 0.082
Use #57423C 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.