#643FA1#643FA1

#643FA1 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.2% C 0.152 H 297.5°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#643FA1
RGB	rgb(100, 63, 161)
HSL	hsl(263, 44%, 44%)
HSV	hsv(263, 61%, 63%)
CMYK	cmyk(37.9%, 60.9%, 0%, 36.9%)
CIE-LAB	lab(35.67, 37.94, -47.54)
CIE-LCH	lch(35.67, 60.82, 308.59°)
OKLab	oklab(46.16% 0.0703 -0.1351)
OKLCH	oklch(46.16% 0.152 297.5)
XYZ	xyz(13.4644, 8.8373, 34.7077)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FA1 #7CA13F

analogous

#3F4BA1 #643FA1 #953FA1

triadic

#643FA1 #A1643F #3FA164

tetradic

#643FA1 #A13F4B #7CA13F #3FA195

square

#643FA1 #A13F4B #7CA13F #3FA195

split-complementary

#643FA1 #A1953F #4BA13F

monochromatic

#2D1D49 #492E75 #643FA1 #835DC0 #A489D1

Accessibility & contrast

On white

7.59

#643FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#643FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FA1

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FA1	#FFFFFF	#000000	##FFFFFF
##643FA1	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A4

Deuteranopia (green-blind)

#17539F

Tritanopia (blue-blind)

#56546A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643fa1;
/* rgb */ color: rgb(100, 63, 161);
/* oklch */ color: oklch(46.2% 0.152 297.5);

Tailwind

colors: {
  custom: {
    50: '#9476bd',
    500: '#643fa1',
    950: '#000000',
  },
}

SCSS

$custom: #643fa1;
$custom-light: #9476bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643fa1",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 161
  },
  "hsl": {
    "h": 262.653,
    "s": 43.75,
    "l": 43.922
  },
  "oklch": {
    "l": 0.46158,
    "c": 0.15231,
    "h": 297.5
  },
  "luminance": 0.08838
}

Semantic roles & 50–950 ramp

primary

#643FA1

secondary

#A5BC80

accent

#D354A3

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643FA1

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

Preview Lab → · Contrast checker → · Palette generator →