#511C83#511C83

#511C83 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.8% C 0.160 H 302.3°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#511C83
RGB	rgb(81, 28, 131)
HSL	hsl(271, 65%, 31%)
HSV	hsv(271, 79%, 51%)
CMYK	cmyk(38.2%, 78.6%, 0%, 48.6%)
CIE-LAB	lab(24.38, 44.19, -47.50)
CIE-LCH	lch(24.38, 64.88, 312.93°)
OKLab	oklab(36.81% 0.0857 -0.1355)
OKLCH	oklch(36.81% 0.16 302.3)
XYZ	xyz(7.9043, 4.2185, 21.8662)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.62

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C83 #4E831C

analogous

#1D1C83 #511C83 #831C81

triadic

#511C83 #83511C #1C8351

tetradic

#511C83 #831D1C #4E831C #1C8183

square

#511C83 #831D1C #4E831C #1C8183

split-complementary

#511C83 #81831C #1C831D

monochromatic

#13061E #321151 #511C83 #7027B5 #8F43D7

Accessibility & contrast

On white

11.39

#511C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#511C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C83

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C83	#FFFFFF	#000000	##FFFFFF
##511C83	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003986

Deuteranopia (green-blind)

#003A81

Tritanopia (blue-blind)

#46374F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #511c83;
/* rgb */ color: rgb(81, 28, 131);
/* oklch */ color: oklch(36.8% 0.160 302.3);

Tailwind

colors: {
  custom: {
    50: '#875ea8',
    500: '#511c83',
    950: '#000000',
  },
}

SCSS

$custom: #511c83;
$custom-light: #875ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#511c83",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 131
  },
  "hsl": {
    "h": 270.874,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3681,
    "c": 0.16035,
    "h": 302.3
  },
  "luminance": 0.04219
}

Semantic roles & 50–950 ramp

primary

#511C83

secondary

#7CB645

accent

#E84091

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511C83

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

Preview Lab → · Contrast checker → · Palette generator →