#644381#644381

#644381 is a dark, moderate violet. Relative luminance 0.083; OKLCH L 44.7% C 0.104 H 307.2°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#644381
RGB	rgb(100, 67, 129)
HSL	hsl(272, 32%, 38%)
HSV	hsv(272, 48%, 51%)
CMYK	cmyk(22.5%, 48.1%, 0%, 49.4%)
CIE-LAB	lab(34.62, 27.13, -29.69)
CIE-LCH	lch(34.62, 40.22, 312.42°)
OKLab	oklab(44.75% 0.063 -0.0829)
OKLCH	oklch(44.75% 0.104 307.2)
XYZ	xyz(11.2243, 8.3087, 21.7771)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644381 #608143

analogous

#454381 #644381 #81437F

triadic

#644381 #816443 #438164

tetradic

#644381 #814543 #608143 #437F81

square

#644381 #814543 #608143 #437F81

split-complementary

#644381 #7F8143 #438145

monochromatic

#261930 #452E59 #644381 #8359A9 #A181BE

Accessibility & contrast

On white

7.89

#644381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#644381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644381

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644381	#FFFFFF	#000000	##FFFFFF
##644381	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335083

Deuteranopia (green-blind)

#3C527F

Tritanopia (blue-blind)

#604D5C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #644381;
/* rgb */ color: rgb(100, 67, 129);
/* oklch */ color: oklch(44.7% 0.104 307.2);

Tailwind

colors: {
  custom: {
    50: '#9278a6',
    500: '#644381',
    950: '#000000',
  },
}

SCSS

$custom: #644381;
$custom-light: #9278a6;
$custom-dark: #000000;

JSON

{
  "hex": "#644381",
  "rgb": {
    "r": 100,
    "g": 67,
    "b": 129
  },
  "hsl": {
    "h": 271.935,
    "s": 31.633,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44748,
    "c": 0.10412,
    "h": 307.2
  },
  "luminance": 0.08309
}

Semantic roles & 50–950 ramp

primary

#644381

secondary

#8EA977

accent

#C86091

background

#F9F7FA

surface

#F1EDF4

border

#CBC8CE

text

#0D090F

muted

#7E7B7F

Preview Lab

Preview with #644381

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

Preview Lab → · Contrast checker → · Palette generator →