#643EA8#643EA8

#643EA8 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.5% C 0.163 H 296.0°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#643EA8
RGB	rgb(100, 62, 168)
HSL	hsl(262, 46%, 45%)
HSV	hsv(262, 63%, 66%)
CMYK	cmyk(40.5%, 63.1%, 0%, 34.1%)
CIE-LAB	lab(35.95, 40.42, -51.28)
CIE-LCH	lch(35.95, 65.30, 308.24°)
OKLab	oklab(46.52% 0.0712 -0.1461)
OKLCH	oklch(46.52% 0.163 296)
XYZ	xyz(14.0442, 8.9814, 38.0318)
Luminance	0.0898 (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

#643EA8 #82A83E

analogous

#3E4DA8 #643EA8 #993EA8

triadic

#643EA8 #A8643E #3EA864

tetradic

#643EA8 #A83E4D #82A83E #3EA899

square

#643EA8 #A83E4D #82A83E #3EA899

split-complementary

#643EA8 #A8993E #4DA83E

monochromatic

#2F1D4F #492E7B #643EA8 #835FC4 #A68CD5

Accessibility & contrast

On white

7.51

#643EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#643EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA8

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA8	#FFFFFF	#000000	##FFFFFF
##643EA8	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#53566D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643ea8;
/* rgb */ color: rgb(100, 62, 168);
/* oklch */ color: oklch(46.5% 0.163 296.0);

Tailwind

colors: {
  custom: {
    50: '#9575c3',
    500: '#643ea8',
    950: '#000000',
  },
}

SCSS

$custom: #643ea8;
$custom-light: #9575c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea8",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 168
  },
  "hsl": {
    "h": 261.509,
    "s": 46.087,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46518,
    "c": 0.16252,
    "h": 296
  },
  "luminance": 0.08982
}

Semantic roles & 50–950 ramp

primary

#643EA8

secondary

#A9BF83

accent

#D652A7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA8

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

Preview Lab → · Contrast checker → · Palette generator →