#511B63#511B63

#511B63 is a dark, vivid purple. Relative luminance 0.034; OKLCH L 34.1% C 0.127 H 316.4°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#511B63
RGB	rgb(81, 27, 99)
HSL	hsl(285, 57%, 25%)
HSV	hsv(285, 73%, 39%)
CMYK	cmyk(18.2%, 72.7%, 0%, 61.2%)
CIE-LAB	lab(21.71, 36.97, -31.27)
CIE-LCH	lch(21.71, 48.42, 319.78°)
OKLab	oklab(34.12% 0.0924 -0.0878)
OKLCH	oklch(34.12% 0.127 316.4)
XYZ	xyz(6.0371, 3.4343, 12.1468)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 4.73

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B63 #2D631B

analogous

#2D1B63 #511B63 #631B51

triadic

#511B63 #63511B #1B6351

tetradic

#511B63 #632D1B #2D631B #1B5163

square

#511B63 #632D1B #2D631B #1B5163

split-complementary

#511B63 #51631B #1B632D

monochromatic

#140718 #2A0E33 #511B63 #782893 #A035C3

Accessibility & contrast

On white

12.45

#511B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#511B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B63

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B63	#FFFFFF	#000000	##FFFFFF
##511B63	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003165

Deuteranopia (green-blind)

#1B3661

Tritanopia (blue-blind)

#50293C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #511b63;
/* rgb */ color: rgb(81, 27, 99);
/* oklch */ color: oklch(34.1% 0.127 316.4);

Tailwind

colors: {
  custom: {
    50: '#855c90',
    500: '#511b63',
    950: '#000000',
  },
}

SCSS

$custom: #511b63;
$custom-light: #855c90;
$custom-dark: #000000;

JSON

{
  "hex": "#511b63",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 285,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34121,
    "c": 0.12747,
    "h": 316.4
  },
  "luminance": 0.03434
}

Semantic roles & 50–950 ramp

primary

#511B63

secondary

#579841

accent

#E0476E

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040C

muted

#7C797D

Preview Lab

Preview with #511B63

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

Preview Lab → · Contrast checker → · Palette generator →