#57403D
Closest named color: Purple Brown (#673A3F). oklch(39.6% 0.033 27.1), rgb(87, 64, 61).
Aa
White text reads best on this color (9.51:1).
About this color
#57403D is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.033 and its hue 27°. 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 | #57403D |
| RGB | rgb(87, 64, 61) |
| HSL | hsl(7, 18%, 29%) |
| OKLCH | oklch(39.6% 0.033 27.1) |
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 #57403D | 9.51:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #57403D | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #57403D text on white | 9.51:1 | AAA | Lc 92.0 | Preferred for body text |
| #57403D 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
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E2D6D4
oklch(88.5% 0.014 28.9)
-
Step 300
300
#D0BBB8
oklch(80.9% 0.024 27.4)
-
Step 400
400
#B89893
oklch(70.7% 0.039 28.5)
-
Step 500
500
#A67E79
oklch(63.1% 0.051 26.7)
-
Step 600
600
#916762
oklch(55.6% 0.055 26.6)
-
Step 700
700
#7B5651
oklch(49.1% 0.05 27.6)
-
Step 800
800
#644642
oklch(42.6% 0.042 27.5)
-
Step 900
900 (this color)
#57403D
oklch(39.6% 0.033 27.1)
-
Step 950
950
#302321
oklch(27.1% 0.02 28.5)
#57403D 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) | #45433D | 0.032 |
| Deuteranopia (no green cones) | #4A473D | 0.030 |
| Tritanopia (no blue cones) | #5C3D3F | 0.014 |
| Achromatopsia (no color) | #454545 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57403D
#57403D
oklch(39.6% 0.033 27.1)
- #314C50
#314C50
oklch(39.7% 0.033 207.6)
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 #57403D, 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
- Mud Brown #60460F ΔE 0.066
- Brownish Purple #76424E ΔE 0.067
- Onyx #343A40 ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.071
- Charcoal #264653 ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.081
Use #57403D 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.