#643FA8#643FA8

#643FA8 is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.161 H 295.7°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#643FA8
RGB	rgb(100, 63, 168)
HSL	hsl(261, 45%, 45%)
HSV	hsv(261, 63%, 66%)
CMYK	cmyk(40.5%, 62.5%, 0%, 34.1%)
CIE-LAB	lab(36.16, 39.86, -50.94)
CIE-LCH	lch(36.16, 64.68, 308.04°)
OKLab	oklab(46.67% 0.07 -0.1451)
OKLCH	oklch(46.67% 0.161 295.7)
XYZ	xyz(14.0991, 9.0912, 38.0501)
Luminance	0.0909 (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

#643FA8 #83A83F

analogous

#3F4EA8 #643FA8 #993FA8

triadic

#643FA8 #A8643F #3FA864

tetradic

#643FA8 #A83F4E #83A83F #3FA899

square

#643FA8 #A83F4E #83A83F #3FA899

split-complementary

#643FA8 #A8993F #4EA83F

monochromatic

#2F1E4F #4A2E7B #643FA8 #8361C4 #A68DD4

Accessibility & contrast

On white

7.45

#643FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#643FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FA8

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FA8	#FFFFFF	#000000	##FFFFFF
##643FA8	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AB

Deuteranopia (green-blind)

#0154A6

Tritanopia (blue-blind)

#53566D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643fa8;
/* rgb */ color: rgb(100, 63, 168);
/* oklch */ color: oklch(46.7% 0.161 295.7);

Tailwind

colors: {
  custom: {
    50: '#9576c3',
    500: '#643fa8',
    950: '#000000',
  },
}

SCSS

$custom: #643fa8;
$custom-light: #9576c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643fa8",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 168
  },
  "hsl": {
    "h": 261.143,
    "s": 45.455,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46671,
    "c": 0.16111,
    "h": 295.7
  },
  "luminance": 0.09091
}

Semantic roles & 50–950 ramp

primary

#643FA8

secondary

#AABF84

accent

#D553A7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643FA8

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

Preview Lab → · Contrast checker → · Palette generator →