#573F60
Closest named color: Purple Brown (#673A3F). oklch(40.7% 0.062 316.6), rgb(87, 63, 96).
Aa
White text reads best on this color (9.18:1).
About this color
#573F60 is a dark, muted purple. In OKLCH its lightness is 41%, its chroma 0.062 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.060 away. White text reads best on it, at 9.18:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #573F60 |
| RGB | rgb(87, 63, 96) |
| HSL | hsl(284, 21%, 31%) |
| OKLCH | oklch(40.7% 0.062 316.6) |
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 #573F60 | 9.18:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #573F60 | 2.28:1 | Fails | Lc 12.9 | Not readable |
| #573F60 text on white | 9.18:1 | AAA | Lc 91.1 | Preferred for body text |
| #573F60 text on black | 2.28:1 | Fails | Lc -11.2 | 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 800.
-
Step 50
50
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EDE8EF
oklch(93.7% 0.011 316.5)
-
Step 200
200
#DED5E2
oklch(88.4% 0.02 315.7)
-
Step 300
300
#CABAD0
oklch(80.9% 0.035 316.9)
-
Step 400
400
#AF96B9
oklch(70.7% 0.057 316.3)
-
Step 500
500
#9B7CA8
oklch(63.1% 0.074 315.8)
-
Step 600
600
#866493
oklch(55.5% 0.081 316.4)
-
Step 700
700
#72537D
oklch(49.1% 0.075 317)
-
Step 800
800 (this color)
#573F60
oklch(40.7% 0.062 316.6)
-
Step 900
900
#4C3A53
oklch(37.8% 0.048 316.4)
-
Step 950
950
#2C2230
oklch(27% 0.029 316.2)
#573F60 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) | #3A4661 | 0.050 |
| Deuteranopia (no green cones) | #40485F | 0.045 |
| Tritanopia (no blue cones) | #57434B | 0.041 |
| Achromatopsia (no color) | #484848 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F60
#573F60
oklch(40.7% 0.062 316.6)
- #3A512F
#3A512F
oklch(40.6% 0.061 136)
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 #573F60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.060
- Brownish Purple #76424E ΔE 0.069
- Dusty Grape #545775 ΔE 0.069
- Dusk #4E5481 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.073
- Dark Grey Blue #29465B ΔE 0.074
- Twilight #4E518B ΔE 0.078
- Dark Slate Blue #483D8B ΔE 0.079
Use #573F60 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.