#511C66#511C66

#511C66 is a dark, vivid purple. Relative luminance 0.035; OKLCH L 34.5% C 0.129 H 314.7°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#511C66
RGB	rgb(81, 28, 102)
HSL	hsl(283, 57%, 25%)
HSV	hsv(283, 73%, 40%)
CMYK	cmyk(20.6%, 72.5%, 0%, 60%)
CIE-LAB	lab(22.09, 37.18, -32.62)
CIE-LCH	lch(22.09, 49.46, 318.73°)
OKLab	oklab(34.46% 0.0909 -0.0918)
OKLCH	oklch(34.46% 0.129 314.7)
XYZ	xyz(6.2065, 3.5394, 12.9240)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C66 #31661C

analogous

#2C1C66 #511C66 #661C56

triadic

#511C66 #66511C #1C6651

tetradic

#511C66 #662C1C #31661C #1C5666

square

#511C66 #662C1C #31661C #1C5666

split-complementary

#511C66 #56661C #1C662C

monochromatic

#130718 #2B0F36 #511C66 #772996 #9D36C6

Accessibility & contrast

On white

12.30

#511C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#511C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C66

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C66	#FFFFFF	#000000	##FFFFFF
##511C66	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003268

Deuteranopia (green-blind)

#193664

Tritanopia (blue-blind)

#4F2B3E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #511c66;
/* rgb */ color: rgb(81, 28, 102);
/* oklch */ color: oklch(34.5% 0.129 314.7);

Tailwind

colors: {
  custom: {
    50: '#855d92',
    500: '#511c66',
    950: '#000000',
  },
}

SCSS

$custom: #511c66;
$custom-light: #855d92;
$custom-dark: #000000;

JSON

{
  "hex": "#511c66",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 282.973,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34462,
    "c": 0.12923,
    "h": 314.7
  },
  "luminance": 0.03539
}

Semantic roles & 50–950 ramp

primary

#511C66

secondary

#5C9B43

accent

#E04873

background

#F8F5F9

surface

#EFE9F1

border

#CAC5CB

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511C66

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

Preview Lab → · Contrast checker → · Palette generator →