#57423F
Closest named color: Purple Brown (#673A3F). oklch(40.1% 0.03 27.8), rgb(87, 66, 63).
Aa
White text reads best on this color (9.30:1).
About this color
#57423F is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Purple Brown (#673A3F), ΔE 0.036 away. White text reads best on it, at 9.30:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #57423F |
| RGB | rgb(87, 66, 63) |
| HSL | hsl(8, 16%, 29%) |
| OKLCH | oklch(40.1% 0.03 27.8) |
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 #57423F | 9.30:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #57423F | 2.25:1 | Fails | Lc 12.5 | Not readable |
| #57423F text on white | 9.30:1 | AAA | Lc 91.5 | Preferred for body text |
| #57423F text on black | 2.25:1 | Fails | Lc -10.9 | 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
#E1D6D5
oklch(88.5% 0.012 23.7)
-
Step 300
300
#CFBCB9
oklch(81% 0.022 28.4)
-
Step 400
400
#B69994
oklch(70.8% 0.036 29.5)
-
Step 500
500
#A37F7A
oklch(63% 0.046 27.5)
-
Step 600
600
#8E6963
oklch(55.7% 0.049 29.2)
-
Step 700
700
#795752
oklch(49.1% 0.046 28.3)
-
Step 800
800
#624743
oklch(42.6% 0.038 28.3)
-
Step 900
900 (this color)
#57423F
oklch(40.1% 0.03 27.8)
-
Step 950
950
#2F2321
oklch(27% 0.019 29.3)
#57423F 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) | #46453F | 0.030 |
| Deuteranopia (no green cones) | #4B483F | 0.027 |
| Tritanopia (no blue cones) | #5C4041 | 0.012 |
| Achromatopsia (no color) | #474747 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57423F
#57423F
oklch(40.1% 0.03 27.8)
- #354D50
#354D50
oklch(40.2% 0.03 205.8)
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 #57423F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.047
- Brownish Purple #76424E ΔE 0.065
- Mud Brown #60460F ΔE 0.065
- Dark Slate Gray #2F4F4F ΔE 0.067
- Onyx #343A40 ΔE 0.069
- Charcoal #264653 ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.079
Use #57423F 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.