#643BA8#643BA8

#643BA8 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.1% C 0.167 H 296.6°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#643BA8
RGB	rgb(100, 59, 168)
HSL	hsl(263, 48%, 45%)
HSV	hsv(263, 65%, 66%)
CMYK	cmyk(40.5%, 64.9%, 0%, 34.1%)
CIE-LAB	lab(35.33, 42.09, -52.29)
CIE-LCH	lch(35.33, 67.12, 308.83°)
OKLab	oklab(46.07% 0.0746 -0.1491)
OKLCH	oklch(46.07% 0.167 296.6)
XYZ	xyz(13.8855, 8.6641, 37.9790)
Luminance	0.0866 (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

#643BA8 #7FA83B

analogous

#3B48A8 #643BA8 #9B3BA8

triadic

#643BA8 #A8643B #3BA864

tetradic

#643BA8 #A83B48 #7FA83B #3BA89B

square

#643BA8 #A83B48 #7FA83B #3BA89B

split-complementary

#643BA8 #A89B3B #48A83B

monochromatic

#2E1B4D #492B7B #643BA8 #835BC5 #A588D5

Accessibility & contrast

On white

7.68

#643BA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#643BA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BA8

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BA8	#FFFFFF	#000000	##FFFFFF
##643BA8	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#0052A6

Tritanopia (blue-blind)

#53546C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ba8;
/* rgb */ color: rgb(100, 59, 168);
/* oklch */ color: oklch(46.1% 0.167 296.6);

Tailwind

colors: {
  custom: {
    50: '#9573c3',
    500: '#643ba8',
    950: '#000000',
  },
}

SCSS

$custom: #643ba8;
$custom-light: #9573c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ba8",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 168
  },
  "hsl": {
    "h": 262.569,
    "s": 48.018,
    "l": 44.51
  },
  "oklch": {
    "l": 0.4607,
    "c": 0.16669,
    "h": 296.6
  },
  "luminance": 0.08664
}

Semantic roles & 50–950 ramp

primary

#643BA8

secondary

#A7C07F

accent

#D850A5

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643BA8

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

Preview Lab → · Contrast checker → · Palette generator →