#511D82#511D82

#511D82 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.8% C 0.158 H 302.5°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#511D82
RGB	rgb(81, 29, 130)
HSL	hsl(271, 64%, 31%)
HSV	hsv(271, 78%, 51%)
CMYK	cmyk(37.7%, 77.7%, 0%, 49%)
CIE-LAB	lab(24.45, 43.50, -46.76)
CIE-LCH	lch(24.45, 63.86, 312.93°)
OKLab	oklab(36.83% 0.085 -0.1334)
OKLCH	oklch(36.83% 0.158 302.5)
XYZ	xyz(7.8610, 4.2397, 21.5190)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.82

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D82 #4E821D

analogous

#1E1D82 #511D82 #821D80

triadic

#511D82 #82511D #1D8251

tetradic

#511D82 #821E1D #4E821D #1D8082

square

#511D82 #821E1D #4E821D #1D8082

split-complementary

#511D82 #80821D #1D821E

monochromatic

#13071E #321250 #511D82 #7028B4 #8F44D5

Accessibility & contrast

On white

11.36

#511D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#511D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D82

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D82	#FFFFFF	#000000	##FFFFFF
##511D82	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003985

Deuteranopia (green-blind)

#003A80

Tritanopia (blue-blind)

#47374E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #511d82;
/* rgb */ color: rgb(81, 29, 130);
/* oklch */ color: oklch(36.8% 0.158 302.5);

Tailwind

colors: {
  custom: {
    50: '#875fa7',
    500: '#511d82',
    950: '#000000',
  },
}

SCSS

$custom: #511d82;
$custom-light: #875fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#511d82",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 130
  },
  "hsl": {
    "h": 270.891,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36831,
    "c": 0.15817,
    "h": 302.5
  },
  "luminance": 0.0424
}

Semantic roles & 50–950 ramp

primary

#511D82

secondary

#7CB546

accent

#E74191

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511D82

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

Preview Lab → · Contrast checker → · Palette generator →