#643897#643897

#643897 is a dark, vivid violet. Relative luminance 0.078; OKLCH L 44.4% C 0.150 H 301.9°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#643897
RGB	rgb(100, 56, 151)
HSL	hsl(268, 46%, 41%)
HSV	hsv(268, 63%, 59%)
CMYK	cmyk(33.8%, 62.9%, 0%, 40.8%)
CIE-LAB	lab(33.50, 39.22, -44.97)
CIE-LCH	lch(33.50, 59.67, 311.09°)
OKLab	oklab(44.36% 0.0795 -0.1276)
OKLCH	oklch(44.36% 0.15 301.9)
XYZ	xyz(12.2543, 7.7720, 30.1267)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643897 #6B9738

analogous

#383C97 #643897 #933897

triadic

#643897 #976438 #389764

tetradic

#643897 #97383C #6B9738 #389793

square

#643897 #97383C #6B9738 #389793

split-complementary

#643897 #979338 #3C9738

monochromatic

#29173E #46276A #643897 #824FBE #A27BCE

Accessibility & contrast

On white

8.22

#643897 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#643897 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643897

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643897	#FFFFFF	#000000	##FFFFFF
##643897	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9A

Deuteranopia (green-blind)

#1A4E95

Tritanopia (blue-blind)

#5A4C62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643897;
/* rgb */ color: rgb(100, 56, 151);
/* oklch */ color: oklch(44.4% 0.150 301.9);

Tailwind

colors: {
  custom: {
    50: '#9471b6',
    500: '#643897',
    950: '#000000',
  },
}

SCSS

$custom: #643897;
$custom-light: #9471b6;
$custom-dark: #000000;

JSON

{
  "hex": "#643897",
  "rgb": {
    "r": 100,
    "g": 56,
    "b": 151
  },
  "hsl": {
    "h": 267.789,
    "s": 45.894,
    "l": 40.588
  },
  "oklch": {
    "l": 0.44362,
    "c": 0.15028,
    "h": 301.9
  },
  "luminance": 0.07772
}

Semantic roles & 50–950 ramp

primary

#643897

secondary

#98B773

accent

#D65299

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643897

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

Preview Lab → · Contrast checker → · Palette generator →