#643CBA#643CBA

#643CBA is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.6% C 0.187 H 292.4°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#643CBA
RGB	rgb(100, 60, 186)
HSL	hsl(259, 51%, 48%)
HSV	hsv(259, 68%, 73%)
CMYK	cmyk(46.2%, 67.7%, 0%, 27.1%)
CIE-LAB	lab(36.90, 46.50, -60.42)
CIE-LCH	lch(36.90, 76.24, 307.58°)
OKLab	oklab(47.63% 0.0713 -0.173)
OKLCH	oklch(47.63% 0.187 292.4)
XYZ	xyz(15.7319, 9.4857, 47.4469)
Luminance	0.0949 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.35

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CBA #92BA3C

analogous

#3C53BA #643CBA #A33CBA

triadic

#643CBA #BA643C #3CBA64

tetradic

#643CBA #BA3C53 #92BA3C #3CBAA3

square

#643CBA #BA3C53 #92BA3C #3CBAA3

split-complementary

#643CBA #BAA33C #53BA3C

monochromatic

#321E5D #4B2D8C #643CBA #8766CE #AB94DC

Accessibility & contrast

On white

7.25

#643CBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#643CBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CBA

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CBA	#FFFFFF	#000000	##FFFFFF
##643CBA	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BE

Deuteranopia (green-blind)

#0054B7

Tritanopia (blue-blind)

#4A5B76

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #643cba;
/* rgb */ color: rgb(100, 60, 186);
/* oklch */ color: oklch(47.6% 0.187 292.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#643cba",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 186
  },
  "hsl": {
    "h": 259.048,
    "s": 51.22,
    "l": 48.235
  },
  "oklch": {
    "l": 0.47634,
    "c": 0.18709,
    "h": 292.4
  },
  "luminance": 0.09486
}

Semantic roles & 50–950 ramp

primary

#643CBA

secondary

#B4C88A

accent

#DB4DAE

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643CBA

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

Preview Lab → · Contrast checker → · Palette generator →