#643C98#643C98

#643C98 is a mid, vivid violet. Relative luminance 0.082; OKLCH L 45.0% C 0.145 H 300.7°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#643C98
RGB	rgb(100, 60, 152)
HSL	hsl(266, 43%, 42%)
HSV	hsv(266, 61%, 60%)
CMYK	cmyk(34.2%, 60.5%, 0%, 40.4%)
CIE-LAB	lab(34.41, 37.23, -44.12)
CIE-LCH	lch(34.41, 57.73, 310.16°)
OKLab	oklab(45.05% 0.0744 -0.1251)
OKLCH	oklch(45.05% 0.146 300.7)
XYZ	xyz(12.5375, 8.2080, 30.6234)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C98 #70983C

analogous

#3C4298 #643C98 #923C98

triadic

#643C98 #98643C #3C9864

tetradic

#643C98 #983C42 #70983C #3C9892

square

#643C98 #983C42 #70983C #3C9892

split-complementary

#643C98 #98923C #42983C

monochromatic

#2A1940 #472B6C #643C98 #8255BC #A281CD

Accessibility & contrast

On white

7.95

#643C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#643C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C98

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C98	#FFFFFF	#000000	##FFFFFF
##643C98	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09519B

Deuteranopia (green-blind)

#205096

Tritanopia (blue-blind)

#594F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643c98;
/* rgb */ color: rgb(100, 60, 152);
/* oklch */ color: oklch(45.0% 0.145 300.7);

Tailwind

colors: {
  custom: {
    50: '#9474b7',
    500: '#643c98',
    950: '#000000',
  },
}

SCSS

$custom: #643c98;
$custom-light: #9474b7;
$custom-dark: #000000;

JSON

{
  "hex": "#643c98",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 152
  },
  "hsl": {
    "h": 266.087,
    "s": 43.396,
    "l": 41.569
  },
  "oklch": {
    "l": 0.45045,
    "c": 0.1455,
    "h": 300.7
  },
  "luminance": 0.08208
}

Semantic roles & 50–950 ramp

primary

#643C98

secondary

#9CB779

accent

#D3559C

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643C98

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

Preview Lab → · Contrast checker → · Palette generator →