#643799#643799

#643799 is a dark, vivid violet. Relative luminance 0.077; OKLCH L 44.4% C 0.154 H 301.5°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#643799
RGB	rgb(100, 55, 153)
HSL	hsl(268, 47%, 41%)
HSV	hsv(268, 64%, 60%)
CMYK	cmyk(34.6%, 64.1%, 0%, 40%)
CIE-LAB	lab(33.44, 40.29, -46.30)
CIE-LCH	lch(33.44, 61.37, 311.03°)
OKLab	oklab(44.36% 0.0806 -0.1314)
OKLCH	oklch(44.36% 0.154 301.5)
XYZ	xyz(12.3701, 7.7416, 30.9734)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643799 #6C9937

analogous

#373B99 #643799 #953799

triadic

#643799 #996437 #379964

tetradic

#643799 #99373B #6C9937 #379995

square

#643799 #99373B #6C9937 #379995

split-complementary

#643799 #999537 #3B9937

monochromatic

#29173F #47276C #643799 #824EBF #A27BD0

Accessibility & contrast

On white

8.24

#643799 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#643799 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643799

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643799	#FFFFFF	#000000	##FFFFFF
##643799	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9C

Deuteranopia (green-blind)

#144E97

Tritanopia (blue-blind)

#594C63

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643799;
/* rgb */ color: rgb(100, 55, 153);
/* oklch */ color: oklch(44.4% 0.154 301.5);

Tailwind

colors: {
  custom: {
    50: '#9470b8',
    500: '#643799',
    950: '#000000',
  },
}

SCSS

$custom: #643799;
$custom-light: #9470b8;
$custom-dark: #000000;

JSON

{
  "hex": "#643799",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 153
  },
  "hsl": {
    "h": 267.551,
    "s": 47.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44359,
    "c": 0.15417,
    "h": 301.5
  },
  "luminance": 0.07742
}

Semantic roles & 50–950 ramp

primary

#643799

secondary

#99B973

accent

#D75199

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #643799

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

Preview Lab → · Contrast checker → · Palette generator →