#643CC3#643CC3

#643CC3 is a mid, vivid violet. Relative luminance 0.099; OKLCH L 48.4% C 0.198 H 290.7°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#643CC3
RGB	rgb(100, 60, 195)
HSL	hsl(258, 53%, 50%)
HSV	hsv(258, 69%, 76%)
CMYK	cmyk(48.7%, 69.2%, 0%, 23.5%)
CIE-LAB	lab(37.63, 49.00, -64.51)
CIE-LCH	lch(37.63, 81.01, 307.22°)
OKLab	oklab(48.38% 0.0698 -0.185)
OKLCH	oklch(48.38% 0.198 290.7)
XYZ	xyz(16.7189, 9.8805, 52.6454)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CC3 #9BC33C

analogous

#3C57C3 #643CC3 #A83CC3

triadic

#643CC3 #C3643C #3CC364

tetradic

#643CC3 #C33C57 #9BC33C #3CC3A8

square

#643CC3 #C33C57 #9BC33C #3CC3A8

split-complementary

#643CC3 #C3A83C #57C33C

monochromatic

#341F65 #4C2E94 #643CC3 #896BD1 #AE9AE0

Accessibility & contrast

On white

7.06

#643CC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#643CC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CC3

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CC3	#FFFFFF	#000000	##FFFFFF
##643CC3	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC7

Deuteranopia (green-blind)

#0056C0

Tritanopia (blue-blind)

#455E7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643cc3;
/* rgb */ color: rgb(100, 60, 195);
/* oklch */ color: oklch(48.4% 0.198 290.7);

Tailwind

colors: {
  custom: {
    50: '#9875d6',
    500: '#643cc3',
    950: '#000000',
  },
}

SCSS

$custom: #643cc3;
$custom-light: #9875d6;
$custom-dark: #000000;

JSON

{
  "hex": "#643cc3",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 195
  },
  "hsl": {
    "h": 257.778,
    "s": 52.941,
    "l": 50
  },
  "oklch": {
    "l": 0.48378,
    "c": 0.19775,
    "h": 290.7
  },
  "luminance": 0.09881
}

Semantic roles & 50–950 ramp

primary

#643CC3

secondary

#BACC8F

accent

#DC4BB1

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #643CC3

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

Preview Lab → · Contrast checker → · Palette generator →