#643CC1#643CC1

#643CC1 is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.2% C 0.195 H 291.0°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#643CC1
RGB	rgb(100, 60, 193)
HSL	hsl(258, 53%, 50%)
HSV	hsv(258, 69%, 76%)
CMYK	cmyk(48.2%, 68.9%, 0%, 24.3%)
CIE-LAB	lab(37.46, 48.44, -63.61)
CIE-LCH	lch(37.46, 79.96, 307.29°)
OKLab	oklab(48.21% 0.0702 -0.1824)
OKLCH	oklch(48.21% 0.195 291)
XYZ	xyz(16.4943, 9.7907, 51.4624)
Luminance	0.0979 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.57

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CC1 #99C13C

analogous

#3C57C1 #643CC1 #A73CC1

triadic

#643CC1 #C1643C #3CC164

tetradic

#643CC1 #C13C57 #99C13C #3CC1A7

square

#643CC1 #C13C57 #99C13C #3CC1A7

split-complementary

#643CC1 #C1A73C #57C13C

monochromatic

#341F64 #4C2D92 #643CC1 #896AD1 #AE98DF

Accessibility & contrast

On white

7.10

#643CC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#643CC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CC1

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CC1	#FFFFFF	#000000	##FFFFFF
##643CC1	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC5

Deuteranopia (green-blind)

#0055BE

Tritanopia (blue-blind)

#465E7A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643cc1;
/* rgb */ color: rgb(100, 60, 193);
/* oklch */ color: oklch(48.2% 0.195 291.0);

Tailwind

colors: {
  custom: {
    50: '#9875d5',
    500: '#643cc1',
    950: '#000000',
  },
}

SCSS

$custom: #643cc1;
$custom-light: #9875d5;
$custom-dark: #000000;

JSON

{
  "hex": "#643cc1",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 193
  },
  "hsl": {
    "h": 258.045,
    "s": 52.569,
    "l": 49.608
  },
  "oklch": {
    "l": 0.48211,
    "c": 0.19539,
    "h": 291
  },
  "luminance": 0.09791
}

Semantic roles & 50–950 ramp

primary

#643CC1

secondary

#B9CB8E

accent

#DC4CB1

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #643CC1

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

Preview Lab → · Contrast checker → · Palette generator →