#643AB2#643AB2

#643AB2 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.7% C 0.180 H 294.4°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#643AB2
RGB	rgb(100, 58, 178)
HSL	hsl(261, 51%, 46%)
HSV	hsv(261, 67%, 70%)
CMYK	cmyk(43.8%, 67.4%, 0%, 30.2%)
CIE-LAB	lab(35.89, 45.36, -57.34)
CIE-LCH	lch(35.89, 73.11, 308.35°)
OKLab	oklab(46.71% 0.0745 -0.1639)
OKLCH	oklch(46.71% 0.18 294.4)
XYZ	xyz(14.8023, 8.9494, 43.0584)
Luminance	0.0895 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.65

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AB2 #88B23A

analogous

#3A4CB2 #643AB2 #A03AB2

triadic

#643AB2 #B2643A #3AB264

tetradic

#643AB2 #B23A4C #88B23A #3AB2A0

square

#643AB2 #B23A4C #88B23A #3AB2A0

split-complementary

#643AB2 #B2A03A #4CB23A

monochromatic

#301C56 #4A2B84 #643AB2 #845FCB #A88DDA

Accessibility & contrast

On white

7.53

#643AB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#643AB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AB2

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AB2	#FFFFFF	#000000	##FFFFFF
##643AB2	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B6

Deuteranopia (green-blind)

#0052B0

Tritanopia (blue-blind)

#4E5771

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ab2;
/* rgb */ color: rgb(100, 58, 178);
/* oklch */ color: oklch(46.7% 0.180 294.4);

Tailwind

colors: {
  custom: {
    50: '#9673ca',
    500: '#643ab2',
    950: '#000000',
  },
}

SCSS

$custom: #643ab2;
$custom-light: #9673ca;
$custom-dark: #000000;

JSON

{
  "hex": "#643ab2",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 178
  },
  "hsl": {
    "h": 261,
    "s": 50.847,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46709,
    "c": 0.18007,
    "h": 294.4
  },
  "luminance": 0.0895
}

Semantic roles & 50–950 ramp

primary

#643AB2

secondary

#AEC483

accent

#DA4DA9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643AB2

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

Preview Lab → · Contrast checker → · Palette generator →