#643BBA#643BBA

#643BBA is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.5% C 0.188 H 292.6°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#643BBA
RGB	rgb(100, 59, 186)
HSL	hsl(259, 52%, 48%)
HSV	hsv(259, 68%, 73%)
CMYK	cmyk(46.2%, 68.3%, 0%, 27.1%)
CIE-LAB	lab(36.71, 47.03, -60.73)
CIE-LCH	lch(36.71, 76.81, 307.75°)
OKLab	oklab(47.5% 0.0723 -0.1739)
OKLCH	oklch(47.5% 0.188 292.6)
XYZ	xyz(15.6800, 9.3819, 47.4296)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.49

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643BBA #91BA3B

analogous

#3B51BA #643BBA #A33BBA

triadic

#643BBA #BA643B #3BBA64

tetradic

#643BBA #BA3B51 #91BA3B #3BBAA3

square

#643BBA #BA3B51 #91BA3B #3BBAA3

split-complementary

#643BBA #BAA33B #51BA3B

monochromatic

#321E5D #4B2C8C #643BBA #8664CE #AB93DD

Accessibility & contrast

On white

7.30

#643BBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#643BBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BBA

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BBA	#FFFFFF	#000000	##FFFFFF
##643BBA	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#0054B7

Tritanopia (blue-blind)

#4A5A76

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643bba;
/* rgb */ color: rgb(100, 59, 186);
/* oklch */ color: oklch(47.5% 0.188 292.6);

Tailwind

colors: {
  custom: {
    50: '#9774d0',
    500: '#643bba',
    950: '#000000',
  },
}

SCSS

$custom: #643bba;
$custom-light: #9774d0;
$custom-dark: #000000;

JSON

{
  "hex": "#643bba",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 186
  },
  "hsl": {
    "h": 259.37,
    "s": 51.837,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47496,
    "c": 0.18832,
    "h": 292.6
  },
  "luminance": 0.09382
}

Semantic roles & 50–950 ramp

primary

#643BBA

secondary

#B4C889

accent

#DB4DAD

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643BBA

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

Preview Lab → · Contrast checker → · Palette generator →