#643DA5#643DA5

#643DA5 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.1% C 0.160 H 296.9°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#643DA5
RGB	rgb(100, 61, 165)
HSL	hsl(263, 46%, 44%)
HSV	hsv(263, 63%, 65%)
CMYK	cmyk(39.4%, 63%, 0%, 35.3%)
CIE-LAB	lab(35.52, 40.16, -50.17)
CIE-LCH	lch(35.52, 64.27, 308.68°)
OKLab	oklab(46.14% 0.0725 -0.1428)
OKLCH	oklch(46.14% 0.16 296.9)
XYZ	xyz(13.7141, 8.7632, 36.5589)
Luminance	0.0876 (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

#643DA5 #7EA53D

analogous

#3D4AA5 #643DA5 #983DA5

triadic

#643DA5 #A5643D #3DA564

tetradic

#643DA5 #A53D4A #7EA53D #3DA598

square

#643DA5 #A53D4A #7EA53D #3DA598

split-complementary

#643DA5 #A5983D #4AA53D

monochromatic

#2E1C4C #492C78 #643DA5 #835CC3 #A589D3

Accessibility & contrast

On white

7.63

#643DA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#643DA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DA5

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DA5	#FFFFFF	#000000	##FFFFFF
##643DA5	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A8

Deuteranopia (green-blind)

#0452A3

Tritanopia (blue-blind)

#54546B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643da5;
/* rgb */ color: rgb(100, 61, 165);
/* oklch */ color: oklch(46.1% 0.160 296.9);

Tailwind

colors: {
  custom: {
    50: '#9574c0',
    500: '#643da5',
    950: '#000000',
  },
}

SCSS

$custom: #643da5;
$custom-light: #9574c0;
$custom-dark: #000000;

JSON

{
  "hex": "#643da5",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 165
  },
  "hsl": {
    "h": 262.5,
    "s": 46.018,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46142,
    "c": 0.16021,
    "h": 296.9
  },
  "luminance": 0.08763
}

Semantic roles & 50–950 ramp

primary

#643DA5

secondary

#A7BE80

accent

#D652A4

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643DA5

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

Preview Lab → · Contrast checker → · Palette generator →