#571A89
Closest named color: Indigo (#4B0082). oklch(37.9% 0.17 304), rgb(87, 26, 137).
Aa
White text reads best on this color (10.97:1).
About this color
#571A89 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.170 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.042 away. White text reads best on it, at 10.97:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #571A89 |
| RGB | rgb(87, 26, 137) |
| HSL | hsl(273, 68%, 32%) |
| OKLCH | oklch(37.9% 0.17 304) |
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 #571A89 | 10.97:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #571A89 | 1.91:1 | Fails | Lc 9.6 | Not readable |
| #571A89 text on white | 10.97:1 | AAA | Lc 94.3 | Preferred for body text |
| #571A89 text on black | 1.91:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#EFE4FF
oklch(93.6% 0.038 304.1)
-
Step 200
200
#E3CFFF
oklch(88.6% 0.068 304)
-
Step 300
300
#D1ADFF
oklch(80.8% 0.119 304)
-
Step 400
400
#BB7DFF
oklch(70.7% 0.19 304)
-
Step 500
500
#AC50FF
oklch(63.1% 0.248 304.2)
-
Step 600
600
#9A12F5
oklch(55.6% 0.283 303.9)
-
Step 700
700
#8300D2
oklch(49.1% 0.256 304.1)
-
Step 800
800
#6B08AC
oklch(42.7% 0.218 304.1)
-
Step 900
900 (this color)
#571A89
oklch(37.9% 0.17 304)
-
Step 950
950
#321250
oklch(27% 0.108 303.4)
#571A89 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) | #003B8C | 0.123 |
| Deuteranopia (no green cones) | #003C87 | 0.124 |
| Tritanopia (no blue cones) | #4D3852 | 0.122 |
| Achromatopsia (no color) | #3C3C3C | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #571A89
#571A89
oklch(37.9% 0.17 304)
- #384A00
#384A00
oklch(38% 0.094 124)
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 #571A89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.042
- Chrysanthemum #560BAD ΔE 0.060
- Rebecca Purple #663399 ΔE 0.062
- Royal Purple #4B006E ΔE 0.063
- Imperial Purple #480CA8 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.073
- Blueberry #464196 ΔE 0.084
- Grape #7209B7 ΔE 0.089
Use #571A89 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.