#573A57
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.061 326.7), rgb(87, 58, 87).
Aa
White text reads best on this color (9.77:1).
About this color
#573A57 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.061 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.051 away. White text reads best on it, at 9.77:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #573A57 |
| RGB | rgb(87, 58, 87) |
| HSL | hsl(300, 20%, 28%) |
| OKLCH | oklch(39.3% 0.061 326.7) |
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 #573A57 | 9.77:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #573A57 | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #573A57 text on white | 9.77:1 | AAA | Lc 92.6 | Preferred for body text |
| #573A57 text on black | 2.14:1 | Fails | Lc -9.9 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EFE7EF
oklch(93.7% 0.014 325.7)
-
Step 200
200
#E2D4E2
oklch(88.5% 0.024 325.8)
-
Step 300
300
#D1B7D0
oklch(80.9% 0.045 327.2)
-
Step 400
400
#B991B9
oklch(70.7% 0.073 326.3)
-
Step 500
500
#A775A7
oklch(63% 0.093 326.6)
-
Step 600
600
#925D92
oklch(55.5% 0.101 326.8)
-
Step 700
700
#7C4D7D
oklch(49.2% 0.093 326.2)
-
Step 800
800
#653F65
oklch(42.7% 0.077 326.8)
-
Step 900
900 (this color)
#573A57
oklch(39.3% 0.061 326.7)
-
Step 950
950
#302030
oklch(27% 0.037 326.5)
#573A57 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) | #384158 | 0.055 |
| Deuteranopia (no green cones) | #3F4556 | 0.051 |
| Tritanopia (no blue cones) | #593D45 | 0.035 |
| Achromatopsia (no color) | #444444 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573A57
#573A57
oklch(39.3% 0.061 326.7)
- #2F4F32
#2F4F32
oklch(39.4% 0.061 146.5)
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 #573A57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.068
- Brownish Purple #76424E ΔE 0.070
- Onyx #343A40 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.077
- Charcoal #264653 ΔE 0.083
- Grape Purple #5D1451 ΔE 0.085
- Dusty Grape #545775 ΔE 0.086
Use #573A57 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.