#571B83#571B83

#571B83 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.5% C 0.163 H 306.0°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#571B83
RGB	rgb(87, 27, 131)
HSL	hsl(275, 66%, 31%)
HSV	hsv(275, 79%, 51%)
CMYK	cmyk(33.6%, 79.4%, 0%, 48.6%)
CIE-LAB	lab(25.10, 45.71, -46.28)
CIE-LCH	lch(25.10, 65.05, 314.64°)
OKLab	oklab(37.5% 0.0957 -0.1317)
OKLCH	oklch(37.5% 0.163 306)
XYZ	xyz(8.4182, 4.4489, 21.8836)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.02

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#571B83 #47831B

analogous

#231B83 #571B83 #831B7B

triadic

#571B83 #83571B #1B8357

tetradic

#571B83 #83231B #47831B #1B7B83

square

#571B83 #83231B #47831B #1B7B83

split-complementary

#571B83 #7B831B #1B8323

monochromatic

#14061E #351150 #571B83 #7925B6 #9841D8

Accessibility & contrast

On white

11.11

#571B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#571B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #571B83

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##571B83	#FFFFFF	#000000	##FFFFFF
##571B83	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A86

Deuteranopia (green-blind)

#003C81

Tritanopia (blue-blind)

#4F354E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #571b83;
/* rgb */ color: rgb(87, 27, 131);
/* oklch */ color: oklch(37.5% 0.163 306.0);

Tailwind

colors: {
  custom: {
    50: '#8b5fa8',
    500: '#571b83',
    950: '#000000',
  },
}

SCSS

$custom: #571b83;
$custom-light: #8b5fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#571b83",
  "rgb": {
    "r": 87,
    "g": 27,
    "b": 131
  },
  "hsl": {
    "h": 274.615,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37501,
    "c": 0.16279,
    "h": 306
  },
  "luminance": 0.04449
}

Semantic roles & 50–950 ramp

primary

#571B83

secondary

#74B643

accent

#E93F87

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #571B83

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →