#643FB8#643FB8

#643FB8 is a mid, vivid violet. Relative luminance 0.097; OKLCH L 47.9% C 0.181 H 292.3°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#643FB8
RGB	rgb(100, 63, 184)
HSL	hsl(258, 49%, 48%)
HSV	hsv(258, 66%, 72%)
CMYK	cmyk(45.7%, 65.8%, 0%, 27.8%)
CIE-LAB	lab(37.34, 44.31, -58.52)
CIE-LCH	lch(37.34, 73.40, 307.13°)
OKLab	oklab(47.9% 0.0685 -0.1674)
OKLCH	oklch(47.9% 0.181 292.3)
XYZ	xyz(15.6824, 9.7245, 46.3888)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.32

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FB8 #93B83F

analogous

#3F56B8 #643FB8 #A03FB8

triadic

#643FB8 #B8643F #3FB864

tetradic

#643FB8 #B83F56 #93B83F #3FB8A0

square

#643FB8 #B83F56 #93B83F #3FB8A0

split-complementary

#643FB8 #B8A03F #56B83F

monochromatic

#32205D #4B2F8A #643FB8 #8769CC #AB96DB

Accessibility & contrast

On white

7.13

#643FB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#643FB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FB8

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FB8	#FFFFFF	#000000	##FFFFFF
##643FB8	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABC

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#4B5C76

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643fb8;
/* rgb */ color: rgb(100, 63, 184);
/* oklch */ color: oklch(47.9% 0.181 292.3);

Tailwind

colors: {
  custom: {
    50: '#9776ce',
    500: '#643fb8',
    950: '#000000',
  },
}

SCSS

$custom: #643fb8;
$custom-light: #9776ce;
$custom-dark: #000000;

JSON

{
  "hex": "#643fb8",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 184
  },
  "hsl": {
    "h": 258.347,
    "s": 48.988,
    "l": 48.431
  },
  "oklch": {
    "l": 0.47902,
    "c": 0.18087,
    "h": 292.3
  },
  "luminance": 0.09725
}

Semantic roles & 50–950 ramp

primary

#643FB8

secondary

#B5C78C

accent

#D94FAF

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #643FB8

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

Preview Lab → · Contrast checker → · Palette generator →