#57404B
Closest named color: Purple Brown (#673A3F). oklch(40% 0.036 348.6), rgb(87, 64, 75).
Aa
White text reads best on this color (9.37:1).
About this color
#57404B is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.036 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.035 away. White text reads best on it, at 9.37:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.37:1 |
Values
| HEX | #57404B |
| RGB | rgb(87, 64, 75) |
| HSL | hsl(331, 15%, 30%) |
| OKLCH | oklch(40% 0.036 348.6) |
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 #57404B | 9.37:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #57404B | 2.24:1 | Fails | Lc 12.3 | Not readable |
| #57404B text on white | 9.37:1 | AAA | Lc 91.6 | Preferred for body text |
| #57404B text on black | 2.24:1 | Fails | Lc -10.7 | 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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EB
oklch(93.7% 0.008 345.4)
-
Step 200
200
#E1D5DB
oklch(88.4% 0.015 345.6)
-
Step 300
300
#CFBAC3
oklch(80.9% 0.027 349.9)
-
Step 400
400
#B696A5
oklch(70.7% 0.043 348.4)
-
Step 500
500
#A47C8F
oklch(63.1% 0.056 348.7)
-
Step 600
600
#8E6579
oklch(55.5% 0.06 348.4)
-
Step 700
700
#795466
oklch(49.2% 0.055 348.6)
-
Step 800
800
#624553
oklch(42.7% 0.045 348.7)
-
Step 900
900 (this color)
#57404B
oklch(40% 0.036 348.6)
-
Step 950
950
#2F2228
oklch(27% 0.022 349.3)
#57404B 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) | #42444B | 0.037 |
| Deuteranopia (no green cones) | #47484A | 0.036 |
| Tritanopia (no blue cones) | #5A4044 | 0.013 |
| Achromatopsia (no color) | #464646 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57404B
#57404B
oklch(40% 0.036 348.6)
- #344E44
#344E44
oklch(40% 0.036 168.6)
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 #57404B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.051
- Brownish Purple #76424E ΔE 0.060
- Onyx #343A40 ΔE 0.069
- Dark Slate Gray #2F4F4F ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.073
- Charcoal #264653 ΔE 0.074
- Dusty Grape #545775 ΔE 0.082
Use #57404B 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.