#643DA8#643DA8

#643DA8 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.4% C 0.164 H 296.2°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#643DA8
RGB	rgb(100, 61, 168)
HSL	hsl(262, 47%, 45%)
HSV	hsv(262, 64%, 66%)
CMYK	cmyk(40.5%, 63.7%, 0%, 34.1%)
CIE-LAB	lab(35.74, 40.98, -51.62)
CIE-LCH	lch(35.74, 65.91, 308.44°)
OKLab	oklab(46.37% 0.0723 -0.1471)
OKLCH	oklch(46.37% 0.164 296.2)
XYZ	xyz(13.9903, 8.8737, 38.0139)
Luminance	0.0887 (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

#643DA8 #81A83D

analogous

#3D4CA8 #643DA8 #993DA8

triadic

#643DA8 #A8643D #3DA864

tetradic

#643DA8 #A83D4C #81A83D #3DA899

square

#643DA8 #A83D4C #81A83D #3DA899

split-complementary

#643DA8 #A8993D #4CA83D

monochromatic

#2F1C4E #492D7B #643DA8 #835EC4 #A68BD5

Accessibility & contrast

On white

7.57

#643DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#643DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DA8

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DA8	#FFFFFF	#000000	##FFFFFF
##643DA8	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#53556D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643da8;
/* rgb */ color: rgb(100, 61, 168);
/* oklch */ color: oklch(46.4% 0.164 296.2);

Tailwind

colors: {
  custom: {
    50: '#9575c3',
    500: '#643da8',
    950: '#000000',
  },
}

SCSS

$custom: #643da8;
$custom-light: #9575c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643da8",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 168
  },
  "hsl": {
    "h": 261.869,
    "s": 46.725,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46367,
    "c": 0.16392,
    "h": 296.2
  },
  "luminance": 0.08874
}

Semantic roles & 50–950 ramp

primary

#643DA8

secondary

#A9BF81

accent

#D651A6

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643DA8

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

Preview Lab → · Contrast checker → · Palette generator →