#57403E
Closest named color: Purple Brown (#673A3F). oklch(39.6% 0.033 24.3), rgb(87, 64, 62).
Aa
White text reads best on this color (9.51:1).
About this color
#57403E is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.033 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.034 away. White text reads best on it, at 9.51:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #57403E |
| RGB | rgb(87, 64, 62) |
| HSL | hsl(5, 17%, 29%) |
| OKLCH | oklch(39.6% 0.033 24.3) |
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 #57403E | 9.51:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #57403E | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #57403E text on white | 9.51:1 | AAA | Lc 92.0 | Preferred for body text |
| #57403E text on black | 2.20:1 | Fails | Lc -10.4 | 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
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EEE8E7
oklch(93.5% 0.007 28.8)
-
Step 200
200
#E2D6D5
oklch(88.5% 0.013 23.2)
-
Step 300
300
#D0BBB9
oklch(80.9% 0.024 24.2)
-
Step 400
400
#B89895
oklch(70.8% 0.039 24.4)
-
Step 500
500
#A67E7B
oklch(63.1% 0.05 23.5)
-
Step 600
600
#916764
oklch(55.6% 0.055 23.6)
-
Step 700
700
#7B5653
oklch(49.2% 0.05 24.2)
-
Step 800
800
#644644
oklch(42.7% 0.042 23.3)
-
Step 900
900 (this color)
#57403E
oklch(39.6% 0.033 24.3)
-
Step 950
950
#302321
oklch(27.1% 0.02 28.5)
#57403E 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) | #44433E | 0.034 |
| Deuteranopia (no green cones) | #4A473E | 0.030 |
| Tritanopia (no blue cones) | #5C3D40 | 0.014 |
| Achromatopsia (no color) | #464646 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57403E
#57403E
oklch(39.6% 0.033 24.3)
- #314C4F
#314C4F
oklch(39.6% 0.033 204.7)
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 #57403E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.047
- Brownish Purple #76424E ΔE 0.066
- Onyx #343A40 ΔE 0.067
- Mud Brown #60460F ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.070
- Charcoal #264653 ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.080
Use #57403E 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.