#511B5D#511B5D

#511B5D is a dark, vivid purple. Relative luminance 0.033; OKLCH L 33.7% C 0.121 H 319.8°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#511B5D
RGB	rgb(81, 27, 93)
HSL	hsl(289, 55%, 24%)
HSV	hsv(289, 71%, 36%)
CMYK	cmyk(12.9%, 71%, 0%, 63.5%)
CIE-LAB	lab(21.30, 35.64, -27.97)
CIE-LCH	lch(21.30, 45.30, 321.88°)
OKLab	oklab(33.7% 0.0927 -0.0782)
OKLCH	oklch(33.7% 0.121 319.8)
XYZ	xyz(5.7608, 3.3238, 10.6919)
Luminance	0.0332 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B5D #275D1B

analogous

#301B5D #511B5D #5D1B48

triadic

#511B5D #5D511B #1B5D51

tetradic

#511B5D #5D301B #275D1B #1B485D

square

#511B5D #5D301B #275D1B #1B485D

split-complementary

#511B5D #485D1B #1B5D30

monochromatic

#150718 #280D2E #511B5D #7A298C #A437BC

Accessibility & contrast

On white

12.61

#511B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#511B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B5D

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B5D	#FFFFFF	#000000	##FFFFFF
##511B5D	1.00	12.61	1.66	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#052F5F

Deuteranopia (green-blind)

#20355B

Tritanopia (blue-blind)

#512739

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #511b5d;
/* rgb */ color: rgb(81, 27, 93);
/* oklch */ color: oklch(33.7% 0.121 319.8);

Tailwind

colors: {
  custom: {
    50: '#845c8b',
    500: '#511b5d',
    950: '#000000',
  },
}

SCSS

$custom: #511b5d;
$custom-light: #845c8b;
$custom-dark: #000000;

JSON

{
  "hex": "#511b5d",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 93
  },
  "hsl": {
    "h": 289.091,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33696,
    "c": 0.12124,
    "h": 319.8
  },
  "luminance": 0.03324
}

Semantic roles & 50–950 ramp

primary

#511B5D

secondary

#509341

accent

#DE4965

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040C

muted

#7C797D

Preview Lab

Preview with #511B5D

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

Preview Lab → · Contrast checker → · Palette generator →