#511C87#511C87

#511C87 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.2% C 0.165 H 300.9°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#511C87
RGB	rgb(81, 28, 135)
HSL	hsl(270, 66%, 32%)
HSV	hsv(270, 79%, 53%)
CMYK	cmyk(40%, 79.3%, 0%, 47.1%)
CIE-LAB	lab(24.73, 45.20, -49.44)
CIE-LCH	lch(24.73, 66.98, 312.43°)
OKLab	oklab(37.16% 0.0847 -0.1412)
OKLCH	oklch(37.16% 0.165 300.9)
XYZ	xyz(8.1807, 4.3290, 23.3216)
Luminance	0.0433 (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

#511C87 #52871C

analogous

#1C1C87 #511C87 #871C87

triadic

#511C87 #87511C #1C8751

tetradic

#511C87 #871C1C #52871C #1C8787

square

#511C87 #871C1C #52871C #1C8787

split-complementary

#511C87 #87871C #1C871C

monochromatic

#140722 #331154 #511C87 #6F27BA #8E45D8

Accessibility & contrast

On white

11.26

#511C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#511C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C87

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C87	#FFFFFF	#000000	##FFFFFF
##511C87	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#453851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511c87;
/* rgb */ color: rgb(81, 28, 135);
/* oklch */ color: oklch(37.2% 0.165 300.9);

Tailwind

colors: {
  custom: {
    50: '#885fab',
    500: '#511c87',
    950: '#000000',
  },
}

SCSS

$custom: #511c87;
$custom-light: #885fab;
$custom-dark: #000000;

JSON

{
  "hex": "#511c87",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 135
  },
  "hsl": {
    "h": 269.72,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37163,
    "c": 0.16465,
    "h": 300.9
  },
  "luminance": 0.04329
}

Semantic roles & 50–950 ramp

primary

#511C87

secondary

#80BA45

accent

#E93F95

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511C87

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

Preview Lab → · Contrast checker → · Palette generator →