#511D66#511D66

#511D66 is a dark, vivid purple. Relative luminance 0.036; OKLCH L 34.6% C 0.128 H 314.6°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#511D66
RGB	rgb(81, 29, 102)
HSL	hsl(283, 56%, 26%)
HSV	hsv(283, 72%, 40%)
CMYK	cmyk(20.6%, 71.6%, 0%, 60%)
CIE-LAB	lab(22.26, 36.70, -32.35)
CIE-LCH	lch(22.26, 48.92, 318.61°)
OKLab	oklab(34.59% 0.0897 -0.091)
OKLCH	oklch(34.59% 0.128 314.6)
XYZ	xyz(6.2306, 3.5876, 12.9321)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D66 #32661D

analogous

#2C1D66 #511D66 #661D56

triadic

#511D66 #66511D #1D6651

tetradic

#511D66 #662C1D #32661D #1D5666

square

#511D66 #662C1D #32661D #1D5666

split-complementary

#511D66 #56661D #1D662C

monochromatic

#130718 #2B0F36 #511D66 #772B96 #9D38C5

Accessibility & contrast

On white

12.23

#511D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#511D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D66

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D66	#FFFFFF	#000000	##FFFFFF
##511D66	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003268

Deuteranopia (green-blind)

#1A3764

Tritanopia (blue-blind)

#4F2B3F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #511d66;
/* rgb */ color: rgb(81, 29, 102);
/* oklch */ color: oklch(34.6% 0.128 314.6);

Tailwind

colors: {
  custom: {
    50: '#855e92',
    500: '#511d66',
    950: '#000000',
  },
}

SCSS

$custom: #511d66;
$custom-light: #855e92;
$custom-dark: #000000;

JSON

{
  "hex": "#511d66",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 102
  },
  "hsl": {
    "h": 282.74,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34585,
    "c": 0.1278,
    "h": 314.6
  },
  "luminance": 0.03587
}

Semantic roles & 50–950 ramp

primary

#511D66

secondary

#5D9B44

accent

#DF4974

background

#F8F5F9

surface

#EFE9F1

border

#CAC5CB

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511D66

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

Preview Lab → · Contrast checker → · Palette generator →