#643197#643197

#643197 is a dark, vivid violet. Relative luminance 0.071; OKLCH L 43.4% C 0.160 H 303.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#643197
RGB	rgb(100, 49, 151)
HSL	hsl(270, 51%, 39%)
HSV	hsv(270, 68%, 59%)
CMYK	cmyk(33.8%, 67.5%, 0%, 40.8%)
CIE-LAB	lab(32.12, 42.97, -47.20)
CIE-LCH	lch(32.12, 63.83, 312.32°)
OKLab	oklab(43.36% 0.0879 -0.1341)
OKLCH	oklch(43.36% 0.16 303.2)
XYZ	xyz(11.9385, 7.1403, 30.0214)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643197 #649731

analogous

#313197 #643197 #973197

triadic

#643197 #976431 #319764

tetradic

#643197 #973131 #649731 #319797

square

#643197 #973131 #649731 #319797

split-complementary

#643197 #979731 #319731

monochromatic

#27133B #452269 #643197 #8343C2 #A171D1

Accessibility & contrast

On white

8.65

#643197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#643197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643197

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643197	#FFFFFF	#000000	##FFFFFF
##643197	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9A

Deuteranopia (green-blind)

#094B95

Tritanopia (blue-blind)

#5A4860

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #643197;
/* rgb */ color: rgb(100, 49, 151);
/* oklch */ color: oklch(43.4% 0.160 303.2);

Tailwind

colors: {
  custom: {
    50: '#946db6',
    500: '#643197',
    950: '#000000',
  },
}

SCSS

$custom: #643197;
$custom-light: #946db6;
$custom-dark: #000000;

JSON

{
  "hex": "#643197",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 151
  },
  "hsl": {
    "h": 270,
    "s": 51,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43365,
    "c": 0.16032,
    "h": 303.2
  },
  "luminance": 0.0714
}

Semantic roles & 50–950 ramp

primary

#643197

secondary

#92B96B

accent

#DA4D94

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0E0711

muted

#7E7A80

Preview Lab

Preview with #643197

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

Preview Lab → · Contrast checker → · Palette generator →