#643DB4#643DB4

#643DB4 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.3% C 0.179 H 293.5°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#643DB4
RGB	rgb(100, 61, 180)
HSL	hsl(260, 49%, 47%)
HSV	hsv(260, 66%, 71%)
CMYK	cmyk(44.4%, 66.1%, 0%, 29.4%)
CIE-LAB	lab(36.63, 44.29, -57.31)
CIE-LCH	lch(36.63, 72.43, 307.70°)
OKLab	oklab(47.3% 0.0711 -0.1638)
OKLCH	oklch(47.3% 0.179 293.5)
XYZ	xyz(15.1602, 9.3417, 44.1755)
Luminance	0.0934 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.06

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DB4 #8DB43D

analogous

#3D51B4 #643DB4 #A03DB4

triadic

#643DB4 #B4643D #3DB464

tetradic

#643DB4 #B43D51 #8DB43D #3DB4A0

square

#643DB4 #B43D51 #8DB43D #3DB4A0

split-complementary

#643DB4 #B4A03D #51B43D

monochromatic

#311E59 #4B2E86 #643DB4 #8564CA #A992DA

Accessibility & contrast

On white

7.32

#643DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#643DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DB4

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DB4	#FFFFFF	#000000	##FFFFFF
##643DB4	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B8

Deuteranopia (green-blind)

#0054B2

Tritanopia (blue-blind)

#4D5973

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643db4;
/* rgb */ color: rgb(100, 61, 180);
/* oklch */ color: oklch(47.3% 0.179 293.5);

Tailwind

colors: {
  custom: {
    50: '#9775cb',
    500: '#643db4',
    950: '#000000',
  },
}

SCSS

$custom: #643db4;
$custom-light: #9775cb;
$custom-dark: #000000;

JSON

{
  "hex": "#643db4",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 180
  },
  "hsl": {
    "h": 259.664,
    "s": 49.378,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47295,
    "c": 0.17861,
    "h": 293.5
  },
  "luminance": 0.09342
}

Semantic roles & 50–950 ramp

primary

#643DB4

secondary

#B1C588

accent

#D94FAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DB4

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

Preview Lab → · Contrast checker → · Palette generator →