#643BA9#643BA9

#643BA9 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.1% C 0.168 H 296.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#643BA9
RGB	rgb(100, 59, 169)
HSL	hsl(262, 48%, 45%)
HSV	hsv(262, 65%, 66%)
CMYK	cmyk(40.8%, 65.1%, 0%, 33.7%)
CIE-LAB	lab(35.40, 42.36, -52.77)
CIE-LCH	lch(35.40, 67.67, 308.76°)
OKLab	oklab(46.15% 0.0745 -0.1505)
OKLCH	oklch(46.15% 0.168 296.3)
XYZ	xyz(13.9791, 8.7016, 38.4715)
Luminance	0.0870 (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

#643BA9 #80A93B

analogous

#3B49A9 #643BA9 #9B3BA9

triadic

#643BA9 #A9643B #3BA964

tetradic

#643BA9 #A93B49 #80A93B #3BA99B

square

#643BA9 #A93B49 #80A93B #3BA99B

split-complementary

#643BA9 #A99B3B #49A93B

monochromatic

#2E1B4E #492B7C #643BA9 #835BC6 #A589D6

Accessibility & contrast

On white

7.66

#643BA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#643BA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BA9

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BA9	#FFFFFF	#000000	##FFFFFF
##643BA9	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AC

Deuteranopia (green-blind)

#0052A7

Tritanopia (blue-blind)

#53546C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ba9;
/* rgb */ color: rgb(100, 59, 169);
/* oklch */ color: oklch(46.1% 0.168 296.3);

Tailwind

colors: {
  custom: {
    50: '#9573c3',
    500: '#643ba9',
    950: '#000000',
  },
}

SCSS

$custom: #643ba9;
$custom-light: #9573c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ba9",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 169
  },
  "hsl": {
    "h": 262.364,
    "s": 48.246,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46146,
    "c": 0.16791,
    "h": 296.3
  },
  "luminance": 0.08702
}

Semantic roles & 50–950 ramp

primary

#643BA9

secondary

#A8C080

accent

#D850A5

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643BA9

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

Preview Lab → · Contrast checker → · Palette generator →