#643DC3#643DC3

#643DC3 is a mid, vivid violet. Relative luminance 0.100; OKLCH L 48.5% C 0.197 H 290.5°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#643DC3
RGB	rgb(100, 61, 195)
HSL	hsl(257, 53%, 50%)
HSV	hsv(257, 69%, 76%)
CMYK	cmyk(48.7%, 68.7%, 0%, 23.5%)
CIE-LAB	lab(37.82, 48.47, -64.20)
CIE-LCH	lch(37.82, 80.45, 307.05°)
OKLab	oklab(48.51% 0.0689 -0.1841)
OKLCH	oklch(48.51% 0.197 290.5)
XYZ	xyz(16.7718, 9.9863, 52.6630)
Luminance	0.0999 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.21

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DC3 #9CC33D

analogous

#3D59C3 #643DC3 #A73DC3

triadic

#643DC3 #C3643D #3DC364

tetradic

#643DC3 #C33D59 #9CC33D #3DC3A7

square

#643DC3 #C33D59 #9CC33D #3DC3A7

split-complementary

#643DC3 #C3A73D #59C33D

monochromatic

#342066 #4C2E95 #643DC3 #896CD1 #AF9AE0

Accessibility & contrast

On white

7.01

#643DC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#643DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DC3

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DC3	#FFFFFF	#000000	##FFFFFF
##643DC3	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC7

Deuteranopia (green-blind)

#0056C0

Tritanopia (blue-blind)

#455F7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643dc3;
/* rgb */ color: rgb(100, 61, 195);
/* oklch */ color: oklch(48.5% 0.197 290.5);

Tailwind

colors: {
  custom: {
    50: '#9875d6',
    500: '#643dc3',
    950: '#000000',
  },
}

SCSS

$custom: #643dc3;
$custom-light: #9875d6;
$custom-dark: #000000;

JSON

{
  "hex": "#643dc3",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 195
  },
  "hsl": {
    "h": 257.463,
    "s": 52.756,
    "l": 50.196
  },
  "oklch": {
    "l": 0.48514,
    "c": 0.19657,
    "h": 290.5
  },
  "luminance": 0.09987
}

Semantic roles & 50–950 ramp

primary

#643DC3

secondary

#BACC90

accent

#DC4CB2

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #643DC3

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

Preview Lab → · Contrast checker → · Palette generator →