#57237F
Closest named color: Indigo (#4B0082). oklch(38.1% 0.149 306.4), rgb(87, 35, 127).
Aa
White text reads best on this color (10.75:1).
About this color
#57237F is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.149 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.053 away. White text reads best on it, at 10.75:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #57237F |
| RGB | rgb(87, 35, 127) |
| HSL | hsl(274, 57%, 32%) |
| OKLCH | oklch(38.1% 0.149 306.4) |
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 #57237F | 10.75:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #57237F | 1.95:1 | Fails | Lc 9.7 | Not readable |
| #57237F text on white | 10.75:1 | AAA | Lc 94.2 | Preferred for body text |
| #57237F text on black | 1.95:1 | Fails | Lc -8.3 | 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 900.
-
Step 50
50
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#EFE5FB
oklch(93.6% 0.031 306.2)
-
Step 200
200
#E3CFFA
oklch(88.4% 0.062 306.2)
-
Step 300
300
#D3AEFA
oklch(81% 0.112 306.3)
-
Step 400
400
#BD7EF7
oklch(70.7% 0.179 306.4)
-
Step 500
500
#AD56F3
oklch(63.1% 0.228 306.4)
-
Step 600
600
#9930E2
oklch(55.6% 0.249 306.3)
-
Step 700
700
#831FC4
oklch(49.1% 0.231 306.5)
-
Step 800
800
#6A1F9E
oklch(42.7% 0.19 306.4)
-
Step 900
900 (this color)
#57237F
oklch(38.1% 0.149 306.4)
-
Step 950
950
#32164A
oklch(27% 0.094 305.8)
#57237F 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) | #003C82 | 0.119 |
| Deuteranopia (no green cones) | #043E7D | 0.119 |
| Tritanopia (no blue cones) | #50384E | 0.106 |
| Achromatopsia (no color) | #3E3E3E | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57237F
#57237F
oklch(38.1% 0.149 306.4)
- #354B00
#354B00
oklch(38% 0.097 126.4)
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 #57237F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.053
- Rebecca Purple #663399 ΔE 0.061
- Royal Purple #4B006E ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.064
- Blueberry #464196 ΔE 0.078
- Chrysanthemum #560BAD ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.082
- Grape Purple #5D1451 ΔE 0.083
Use #57237F 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.