#511B64#511B64

#511B64 is a dark, vivid purple. Relative luminance 0.035; OKLCH L 34.2% C 0.129 H 315.9°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#511B64
RGB	rgb(81, 27, 100)
HSL	hsl(284, 57%, 25%)
HSV	hsv(284, 73%, 39%)
CMYK	cmyk(19%, 73%, 0%, 60.8%)
CIE-LAB	lab(21.78, 37.20, -31.81)
CIE-LCH	lch(21.78, 48.95, 319.46°)
OKLab	oklab(34.19% 0.0923 -0.0894)
OKLCH	oklch(34.19% 0.129 315.9)
XYZ	xyz(6.0852, 3.4535, 12.4002)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 4.89

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B64 #2E641B

analogous

#2D1B64 #511B64 #641B52

triadic

#511B64 #64511B #1B6451

tetradic

#511B64 #642D1B #2E641B #1B5264

square

#511B64 #642D1B #2E641B #1B5264

split-complementary

#511B64 #52641B #1B642D

monochromatic

#140718 #2A0E34 #511B64 #782894 #9F35C4

Accessibility & contrast

On white

12.42

#511B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#511B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B64

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B64	#FFFFFF	#000000	##FFFFFF
##511B64	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003166

Deuteranopia (green-blind)

#1A3662

Tritanopia (blue-blind)

#50293D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #511b64;
/* rgb */ color: rgb(81, 27, 100);
/* oklch */ color: oklch(34.2% 0.129 315.9);

Tailwind

colors: {
  custom: {
    50: '#855c91',
    500: '#511b64',
    950: '#000000',
  },
}

SCSS

$custom: #511b64;
$custom-light: #855c91;
$custom-dark: #000000;

JSON

{
  "hex": "#511b64",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 100
  },
  "hsl": {
    "h": 284.384,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34194,
    "c": 0.12853,
    "h": 315.9
  },
  "luminance": 0.03453
}

Semantic roles & 50–950 ramp

primary

#511B64

secondary

#589941

accent

#E1476F

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040D

muted

#7C797D

Preview Lab

Preview with #511B64

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

Preview Lab → · Contrast checker → · Palette generator →