#511663#511663

#511663 is a dark, vivid purple. Relative luminance 0.032; OKLCH L 33.6% C 0.134 H 317.0°. Best body text is #FFFFFF at 12.77:1 contrast (WCAG AA passes).

Color values

HEX	#511663
RGB	rgb(81, 22, 99)
HSL	hsl(286, 64%, 24%)
HSV	hsv(286, 78%, 39%)
CMYK	cmyk(18.2%, 77.8%, 0%, 61.2%)
CIE-LAB	lab(20.92, 39.19, -32.53)
CIE-LCH	lch(20.92, 50.93, 320.31°)
OKLab	oklab(33.56% 0.0981 -0.0915)
OKLCH	oklch(33.56% 0.134 317)
XYZ	xyz(5.9320, 3.2243, 12.1118)
Luminance	0.0322 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 4.31

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511663 #286316

analogous

#2A1663 #511663 #63164E

triadic

#511663 #635116 #166351

tetradic

#511663 #632A16 #286316 #164E63

square

#511663 #632A16 #286316 #164E63

split-complementary

#511663 #4E6316 #16632A

monochromatic

#140619 #280B31 #511663 #7A2195 #A32CC7

Accessibility & contrast

On white

12.77

#511663 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#511663 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511663

12.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511663	#FFFFFF	#000000	##FFFFFF
##511663	1.00	12.77	1.64	12.77
#FFFFFF	12.77	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F65

Deuteranopia (green-blind)

#173461

Tritanopia (blue-blind)

#50263B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #511663;
/* rgb */ color: rgb(81, 22, 99);
/* oklch */ color: oklch(33.6% 0.134 317.0);

Tailwind

colors: {
  custom: {
    50: '#855a90',
    500: '#511663',
    950: '#000000',
  },
}

SCSS

$custom: #511663;
$custom-light: #855a90;
$custom-dark: #000000;

JSON

{
  "hex": "#511663",
  "rgb": {
    "r": 81,
    "g": 22,
    "b": 99
  },
  "hsl": {
    "h": 285.974,
    "s": 63.636,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33561,
    "c": 0.13415,
    "h": 317
  },
  "luminance": 0.03224
}

Semantic roles & 50–950 ramp

primary

#511663

secondary

#519A3B

accent

#E74168

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040C

muted

#7C797D

Preview Lab

Preview with #511663

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

Preview Lab → · Contrast checker → · Palette generator →