#643EC3#643EC3

#643EC3 is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.7% C 0.195 H 290.4°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#643EC3
RGB	rgb(100, 62, 195)
HSL	hsl(257, 53%, 50%)
HSV	hsv(257, 68%, 76%)
CMYK	cmyk(48.7%, 68.2%, 0%, 23.5%)
CIE-LAB	lab(38.01, 47.94, -63.89)
CIE-LCH	lch(38.01, 79.88, 306.88°)
OKLab	oklab(48.65% 0.068 -0.1832)
OKLCH	oklch(48.65% 0.195 290.4)
XYZ	xyz(16.8257, 10.0940, 52.6810)
Luminance	0.1009 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.03

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EC3 #9DC33E

analogous

#3E5AC3 #643EC3 #A63EC3

triadic

#643EC3 #C3643E #3EC364

tetradic

#643EC3 #C33E5A #9DC33E #3EC3A6

square

#643EC3 #C33E5A #9DC33E #3EC3A6

split-complementary

#643EC3 #C3A63E #5AC33E

monochromatic

#342067 #4C2E95 #643EC3 #896DD2 #AF9BE0

Accessibility & contrast

On white

6.96

#643EC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#643EC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643EC3

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EC3	#FFFFFF	#000000	##FFFFFF
##643EC3	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC7

Deuteranopia (green-blind)

#0056C0

Tritanopia (blue-blind)

#455F7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643ec3;
/* rgb */ color: rgb(100, 62, 195);
/* oklch */ color: oklch(48.7% 0.195 290.4);

Tailwind

colors: {
  custom: {
    50: '#9876d6',
    500: '#643ec3',
    950: '#000000',
  },
}

SCSS

$custom: #643ec3;
$custom-light: #9876d6;
$custom-dark: #000000;

JSON

{
  "hex": "#643ec3",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 195
  },
  "hsl": {
    "h": 257.143,
    "s": 52.569,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48652,
    "c": 0.19538,
    "h": 290.4
  },
  "luminance": 0.10095
}

Semantic roles & 50–950 ramp

primary

#643EC3

secondary

#BBCC91

accent

#DC4CB3

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #643EC3

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

Preview Lab → · Contrast checker → · Palette generator →