#573D72
Closest named color: Dark Slate Blue (#483D8B). oklch(41.3% 0.09 305.4), rgb(87, 61, 114).
Aa
White text reads best on this color (9.06:1).
About this color
#573D72 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.090 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 9.06:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #573D72 |
| RGB | rgb(87, 61, 114) |
| HSL | hsl(269, 30%, 34%) |
| OKLCH | oklch(41.3% 0.09 305.4) |
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 #573D72 | 9.06:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #573D72 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #573D72 text on white | 9.06:1 | AAA | Lc 90.7 | Preferred for body text |
| #573D72 text on black | 2.31:1 | Fails | Lc -11.6 | 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 800.
-
Step 50
50
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE7F2
oklch(93.5% 0.016 306.4)
-
Step 200
200
#DED5E9
oklch(88.6% 0.029 306)
-
Step 300
300
#C9B8DC
oklch(80.8% 0.053 306.5)
-
Step 400
400
#AD93CB
oklch(70.6% 0.085 305.5)
-
Step 500
500
#9978BE
oklch(63.1% 0.108 305.2)
-
Step 600
600
#8460AA
oklch(55.7% 0.117 305.3)
-
Step 700
700
#704F92
oklch(49.2% 0.109 305.5)
-
Step 800
800 (this color)
#573D72
oklch(41.3% 0.09 305.4)
-
Step 900
900
#4B375F
oklch(37.7% 0.071 306.3)
-
Step 950
950
#2C2138
oklch(27.2% 0.044 305.6)
#573D72 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) | #304874 | 0.065 |
| Deuteranopia (no green cones) | #364971 | 0.060 |
| Tritanopia (no blue cones) | #534652 | 0.067 |
| Achromatopsia (no color) | #494949 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573D72
#573D72
oklch(41.3% 0.09 305.4)
- #405314
#405314
oklch(41.2% 0.09 124.9)
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 #573D72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Twilight #4E518B ΔE 0.062
- Dusk #4E5481 ΔE 0.064
- Blueberry #464196 ΔE 0.066
- Dusty Grape #545775 ΔE 0.074
- Rebecca Purple #663399 ΔE 0.075
- YInMn Blue #415A77 ΔE 0.086
- Dark Grey Blue #29465B ΔE 0.088
Use #573D72 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.