#643699#643699

#643699 is a dark, vivid violet. Relative luminance 0.076; OKLCH L 44.2% C 0.156 H 301.7°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#643699
RGB	rgb(100, 54, 153)
HSL	hsl(268, 48%, 41%)
HSV	hsv(268, 65%, 60%)
CMYK	cmyk(34.6%, 64.7%, 0%, 40%)
CIE-LAB	lab(33.24, 40.83, -46.62)
CIE-LCH	lch(33.24, 61.97, 311.21°)
OKLab	oklab(44.21% 0.0818 -0.1324)
OKLCH	oklch(44.21% 0.156 301.7)
XYZ	xyz(12.3231, 7.6475, 30.9577)
Luminance	0.0765 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643699 #6B9936

analogous

#363999 #643699 #953699

triadic

#643699 #996436 #369964

tetradic

#643699 #993639 #6B9936 #369995

square

#643699 #993639 #6B9936 #369995

split-complementary

#643699 #999536 #399936

monochromatic

#29163F #46266C #643699 #824CC0 #A27AD0

Accessibility & contrast

On white

8.30

#643699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#643699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643699

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643699	#FFFFFF	#000000	##FFFFFF
##643699	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9C

Deuteranopia (green-blind)

#124E97

Tritanopia (blue-blind)

#594C62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #643699;
/* rgb */ color: rgb(100, 54, 153);
/* oklch */ color: oklch(44.2% 0.156 301.7);

Tailwind

colors: {
  custom: {
    50: '#9470b8',
    500: '#643699',
    950: '#000000',
  },
}

SCSS

$custom: #643699;
$custom-light: #9470b8;
$custom-dark: #000000;

JSON

{
  "hex": "#643699",
  "rgb": {
    "r": 100,
    "g": 54,
    "b": 153
  },
  "hsl": {
    "h": 267.879,
    "s": 47.826,
    "l": 40.588
  },
  "oklch": {
    "l": 0.44214,
    "c": 0.15561,
    "h": 301.7
  },
  "luminance": 0.07648
}

Semantic roles & 50–950 ramp

primary

#643699

secondary

#98B972

accent

#D75099

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #643699

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

Preview Lab → · Contrast checker → · Palette generator →