#643BC1#643BC1

#643BC1 is a mid, vivid violet. Relative luminance 0.097; OKLCH L 48.1% C 0.197 H 291.2°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#643BC1
RGB	rgb(100, 59, 193)
HSL	hsl(258, 53%, 49%)
HSV	hsv(258, 69%, 76%)
CMYK	cmyk(48.2%, 69.4%, 0%, 24.3%)
CIE-LAB	lab(37.27, 48.97, -63.92)
CIE-LCH	lch(37.27, 80.52, 307.45°)
OKLab	oklab(48.08% 0.0711 -0.1833)
OKLCH	oklch(48.08% 0.197 291.2)
XYZ	xyz(16.4424, 9.6869, 51.4451)
Luminance	0.0969 (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

#643BC1 #98C13B

analogous

#3B55C1 #643BC1 #A73BC1

triadic

#643BC1 #C1643B #3BC164

tetradic

#643BC1 #C13B55 #98C13B #3BC1A7

square

#643BC1 #C13B55 #98C13B #3BC1A7

split-complementary

#643BC1 #C1A73B #55C13B

monochromatic

#331E63 #4C2D92 #643BC1 #8868D1 #AD97DF

Accessibility & contrast

On white

7.15

#643BC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#643BC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BC1

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BC1	#FFFFFF	#000000	##FFFFFF
##643BC1	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC5

Deuteranopia (green-blind)

#0055BE

Tritanopia (blue-blind)

#465D79

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643bc1;
/* rgb */ color: rgb(100, 59, 193);
/* oklch */ color: oklch(48.1% 0.197 291.2);

Tailwind

colors: {
  custom: {
    50: '#9874d5',
    500: '#643bc1',
    950: '#000000',
  },
}

SCSS

$custom: #643bc1;
$custom-light: #9874d5;
$custom-dark: #000000;

JSON

{
  "hex": "#643bc1",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 193
  },
  "hsl": {
    "h": 258.358,
    "s": 53.175,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48075,
    "c": 0.19658,
    "h": 291.2
  },
  "luminance": 0.09688
}

Semantic roles & 50–950 ramp

primary

#643BC1

secondary

#B8CB8D

accent

#DD4BB0

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #643BC1

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

Preview Lab → · Contrast checker → · Palette generator →