#643EC4#643EC4

#643EC4 is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.7% C 0.197 H 290.2°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#643EC4
RGB	rgb(100, 62, 196)
HSL	hsl(257, 53%, 51%)
HSV	hsv(257, 68%, 77%)
CMYK	cmyk(49%, 68.4%, 0%, 23.1%)
CIE-LAB	lab(38.09, 48.22, -64.34)
CIE-LCH	lch(38.09, 80.41, 306.85°)
OKLab	oklab(48.74% 0.0678 -0.1845)
OKLCH	oklch(48.74% 0.197 290.2)
XYZ	xyz(16.9391, 10.1394, 53.2784)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 0.94

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EC4 #9EC43E

analogous

#3E5BC4 #643EC4 #A73EC4

triadic

#643EC4 #C4643E #3EC464

tetradic

#643EC4 #C43E5B #9EC43E #3EC4A7

square

#643EC4 #C43E5B #9EC43E #3EC4A7

split-complementary

#643EC4 #C4A73E #5BC43E

monochromatic

#342068 #4C2E97 #643EC4 #8A6DD2 #AF9CE1

Accessibility & contrast

On white

6.94

#643EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#643EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643EC4

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EC4	#FFFFFF	#000000	##FFFFFF
##643EC4	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC8

Deuteranopia (green-blind)

#0057C1

Tritanopia (blue-blind)

#44607C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643ec4;
/* rgb */ color: rgb(100, 62, 196);
/* oklch */ color: oklch(48.7% 0.197 290.2);

Tailwind

colors: {
  custom: {
    50: '#9876d7',
    500: '#643ec4',
    950: '#000000',
  },
}

SCSS

$custom: #643ec4;
$custom-light: #9876d7;
$custom-dark: #000000;

JSON

{
  "hex": "#643ec4",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 196
  },
  "hsl": {
    "h": 257.015,
    "s": 53.175,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48735,
    "c": 0.19656,
    "h": 290.2
  },
  "luminance": 0.1014
}

Semantic roles & 50–950 ramp

primary

#643EC4

secondary

#BCCD91

accent

#DD4BB3

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #643EC4

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

Preview Lab → · Contrast checker → · Palette generator →