#573F4C
Closest named color: Purple Brown (#673A3F). oklch(39.9% 0.039 345.3), rgb(87, 63, 76).
Aa
White text reads best on this color (9.45:1).
About this color
#573F4C is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.039 and its hue 345°. 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 9.45:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.22:1 |
| White text | 9.45:1 |
Values
| HEX | #573F4C |
| RGB | rgb(87, 63, 76) |
| HSL | hsl(328, 16%, 29%) |
| OKLCH | oklch(39.9% 0.039 345.3) |
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 #573F4C | 9.45:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #573F4C | 2.22:1 | Fails | Lc 12.1 | Not readable |
| #573F4C text on white | 9.45:1 | AAA | Lc 91.8 | Preferred for body text |
| #573F4C text on black | 2.22:1 | Fails | Lc -10.6 | 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
#E2D5DB
oklch(88.5% 0.016 347.7)
-
Step 300
300
#CFB9C5
oklch(80.8% 0.03 343.7)
-
Step 400
400
#B795A7
oklch(70.6% 0.047 345.3)
-
Step 500
500
#A57B92
oklch(63.1% 0.061 345)
-
Step 600
600
#8F647C
oklch(55.6% 0.065 344.9)
-
Step 700
700
#7A5368
oklch(49.1% 0.06 346)
-
Step 800
800
#634455
oklch(42.7% 0.05 345.4)
-
Step 900
900 (this color)
#573F4C
oklch(39.9% 0.039 345.3)
-
Step 950
950
#2F2229
oklch(27% 0.023 345.2)
#573F4C 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) | #40444D | 0.041 |
| Deuteranopia (no green cones) | #46474B | 0.037 |
| Tritanopia (no blue cones) | #5A3F43 | 0.016 |
| Achromatopsia (no color) | #464646 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F4C
#573F4C
oklch(39.9% 0.039 345.3)
- #334E42
#334E42
oklch(39.8% 0.039 165)
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 #573F4C, 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 0.052
- Brownish Purple #76424E ΔE 0.061
- Onyx #343A40 ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.073
- Dark Slate Gray #2F4F4F ΔE 0.074
- Charcoal #264653 ΔE 0.075
- Dusty Grape #545775 ΔE 0.083
Use #573F4C 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.