#643DAF#643DAF

#643DAF is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.9% C 0.173 H 294.5°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#643DAF
RGB	rgb(100, 61, 175)
HSL	hsl(261, 48%, 46%)
HSV	hsv(261, 65%, 69%)
CMYK	cmyk(42.9%, 65.1%, 0%, 31.4%)
CIE-LAB	lab(36.26, 42.91, -54.96)
CIE-LCH	lch(36.26, 69.72, 307.98°)
OKLab	oklab(46.9% 0.0717 -0.1569)
OKLCH	oklch(46.9% 0.173 294.5)
XYZ	xyz(14.6601, 9.1416, 41.5412)
Luminance	0.0914 (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

#643DAF #88AF3D

analogous

#3D4FAF #643DAF #9D3DAF

triadic

#643DAF #AF643D #3DAF64

tetradic

#643DAF #AF3D4F #88AF3D #3DAF9D

square

#643DAF #AF3D4F #88AF3D #3DAF9D

split-complementary

#643DAF #AF9D3D #4FAF3D

monochromatic

#301D54 #4A2D82 #643DAF #8461C8 #A88FD8

Accessibility & contrast

On white

7.42

#643DAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#643DAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DAF

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DAF	#FFFFFF	#000000	##FFFFFF
##643DAF	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B3

Deuteranopia (green-blind)

#0053AD

Tritanopia (blue-blind)

#505870

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643daf;
/* rgb */ color: rgb(100, 61, 175);
/* oklch */ color: oklch(46.9% 0.173 294.5);

Tailwind

colors: {
  custom: {
    50: '#9675c8',
    500: '#643daf',
    950: '#000000',
  },
}

SCSS

$custom: #643daf;
$custom-light: #9675c8;
$custom-dark: #000000;

JSON

{
  "hex": "#643daf",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 175
  },
  "hsl": {
    "h": 260.526,
    "s": 48.305,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46903,
    "c": 0.17252,
    "h": 294.5
  },
  "luminance": 0.09142
}

Semantic roles & 50–950 ramp

primary

#643DAF

secondary

#AEC385

accent

#D850A9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DAF

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

Preview Lab → · Contrast checker → · Palette generator →