#573E68
Closest named color: Dark Slate Blue (#483D8B). oklch(40.9% 0.075 310.7), rgb(87, 62, 104).
Aa
White text reads best on this color (9.15:1).
About this color
#573E68 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.075 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.065 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #573E68 |
| RGB | rgb(87, 62, 104) |
| HSL | hsl(276, 25%, 33%) |
| OKLCH | oklch(40.9% 0.075 310.7) |
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 #573E68 | 9.15:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #573E68 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #573E68 text on white | 9.15:1 | AAA | Lc 91.0 | Preferred for body text |
| #573E68 text on black | 2.29:1 | Fails | Lc -11.3 | 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
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DED5E5
oklch(88.5% 0.024 310.7)
-
Step 300
300
#CAB9D6
oklch(80.9% 0.044 311.4)
-
Step 400
400
#AE95C1
oklch(70.7% 0.069 310.3)
-
Step 500
500
#9B7AB2
oklch(63.2% 0.09 310.8)
-
Step 600
600
#85629D
oklch(55.5% 0.097 310.7)
-
Step 700
700
#715186
oklch(49% 0.09 311.1)
-
Step 800
800 (this color)
#573E68
oklch(40.9% 0.075 310.7)
-
Step 900
900
#4B3958
oklch(37.7% 0.056 310.4)
-
Step 950
950
#2C2134
oklch(26.9% 0.038 310.4)
#573E68 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) | #36476A | 0.057 |
| Deuteranopia (no green cones) | #3C4867 | 0.051 |
| Tritanopia (no blue cones) | #55444E | 0.053 |
| Achromatopsia (no color) | #484848 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573E68
#573E68
oklch(40.9% 0.075 310.7)
- #3C5225
#3C5225
oklch(40.9% 0.074 130.5)
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 #573E68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.065
- Dusk #4E5481 ΔE 0.067
- Twilight #4E518B ΔE 0.070
- Dusty Grape #545775 ΔE 0.070
- Purple Brown #673A3F ΔE 0.072
- Brownish Purple #76424E ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.079
- Blueberry #464196 ΔE 0.081
Use #573E68 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.