#643CA9#643CA9

#643CA9 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.3% C 0.167 H 296.1°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#643CA9
RGB	rgb(100, 60, 169)
HSL	hsl(262, 48%, 45%)
HSV	hsv(262, 64%, 66%)
CMYK	cmyk(40.8%, 64.5%, 0%, 33.7%)
CIE-LAB	lab(35.61, 41.81, -52.44)
CIE-LCH	lch(35.61, 67.06, 308.57°)
OKLab	oklab(46.29% 0.0734 -0.1495)
OKLCH	oklch(46.29% 0.167 296.1)
XYZ	xyz(14.0310, 8.8053, 38.4888)
Luminance	0.0881 (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

#643CA9 #81A93C

analogous

#3C4BA9 #643CA9 #9A3CA9

triadic

#643CA9 #A9643C #3CA964

tetradic

#643CA9 #A93C4B #81A93C #3CA99A

square

#643CA9 #A93C4B #81A93C #3CA99A

split-complementary

#643CA9 #A99A3C #4BA93C

monochromatic

#2F1C4F #492C7C #643CA9 #835DC5 #A68AD5

Accessibility & contrast

On white

7.61

#643CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#643CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA9

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA9	#FFFFFF	#000000	##FFFFFF
##643CA9	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AC

Deuteranopia (green-blind)

#0052A7

Tritanopia (blue-blind)

#53556D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ca9;
/* rgb */ color: rgb(100, 60, 169);
/* oklch */ color: oklch(46.3% 0.167 296.1);

Tailwind

colors: {
  custom: {
    50: '#9574c3',
    500: '#643ca9',
    950: '#000000',
  },
}

SCSS

$custom: #643ca9;
$custom-light: #9574c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca9",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 169
  },
  "hsl": {
    "h": 262.018,
    "s": 47.598,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46293,
    "c": 0.16654,
    "h": 296.1
  },
  "luminance": 0.08806
}

Semantic roles & 50–950 ramp

primary

#643CA9

secondary

#A9C081

accent

#D751A6

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643CA9

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

Preview Lab → · Contrast checker → · Palette generator →