#573172
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.112 309.1), rgb(87, 49, 114).
Aa
White text reads best on this color (10.05:1).
About this color
#573172 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.112 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.054 away. White text reads best on it, at 10.05:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #573172 |
| RGB | rgb(87, 49, 114) |
| HSL | hsl(275, 40%, 32%) |
| OKLCH | oklch(39.2% 0.112 309.1) |
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 #573172 | 10.05:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #573172 | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #573172 text on white | 10.05:1 | AAA | Lc 93.0 | Preferred for body text |
| #573172 text on black | 2.08:1 | Fails | Lc -9.4 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E2D1F1
oklch(88.4% 0.047 309.2)
-
Step 300
300
#D1B2EA
oklch(80.9% 0.084 309.6)
-
Step 400
400
#B988E0
oklch(70.7% 0.134 308.9)
-
Step 500
500
#A867D7
oklch(63.1% 0.172 309.1)
-
Step 600
600
#934BC4
oklch(55.6% 0.186 309)
-
Step 700
700
#7D3BA9
oklch(49% 0.173 309)
-
Step 800
800
#663289
oklch(42.7% 0.143 309.1)
-
Step 900
900 (this color)
#573172
oklch(39.2% 0.112 309.1)
-
Step 950
950
#311B40
oklch(27% 0.071 309.9)
#573172 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) | #1D4074 | 0.093 |
| Deuteranopia (no green cones) | #2A4370 | 0.083 |
| Tritanopia (no blue cones) | #533D4C | 0.081 |
| Achromatopsia (no color) | #424242 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573172
#573172
oklch(39.2% 0.112 309.1)
- #334F00
#334F00
oklch(39% 0.104 129.2)
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 #573172, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.054
- Rebecca Purple #663399 ΔE 0.070
- Blueberry #464196 ΔE 0.073
- Grape Purple #5D1451 ΔE 0.076
- Indigo #4B0082 ΔE 0.087
- Twilight #4E518B ΔE 0.088
- Royal Purple #4B006E ΔE 0.088
- Rich Purple #720058 ΔE 0.091
Use #573172 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.