#643FA0#643FA0

#643FA0 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.1% C 0.151 H 297.8°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#643FA0
RGB	rgb(100, 63, 160)
HSL	hsl(263, 43%, 44%)
HSV	hsv(263, 61%, 63%)
CMYK	cmyk(37.5%, 60.6%, 0%, 37.3%)
CIE-LAB	lab(35.60, 37.66, -47.05)
CIE-LCH	lch(35.60, 60.26, 308.68°)
OKLab	oklab(46.09% 0.0704 -0.1337)
OKLCH	oklch(46.09% 0.151 297.8)
XYZ	xyz(13.3766, 8.8022, 34.2451)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FA0 #7BA03F

analogous

#3F4AA0 #643FA0 #943FA0

triadic

#643FA0 #A0643F #3FA064

tetradic

#643FA0 #A03F4A #7BA03F #3FA094

square

#643FA0 #A03F4A #7BA03F #3FA094

split-complementary

#643FA0 #A0943F #4AA03F

monochromatic

#2D1C48 #492E74 #643FA0 #825DBF #A489D0

Accessibility & contrast

On white

7.61

#643FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#643FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FA0

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FA0	#FFFFFF	#000000	##FFFFFF
##643FA0	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A3

Deuteranopia (green-blind)

#19539E

Tritanopia (blue-blind)

#565469

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643fa0;
/* rgb */ color: rgb(100, 63, 160);
/* oklch */ color: oklch(46.1% 0.151 297.8);

Tailwind

colors: {
  custom: {
    50: '#9476bd',
    500: '#643fa0',
    950: '#000000',
  },
}

SCSS

$custom: #643fa0;
$custom-light: #9476bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643fa0",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 160
  },
  "hsl": {
    "h": 262.887,
    "s": 43.498,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46086,
    "c": 0.15105,
    "h": 297.8
  },
  "luminance": 0.08802
}

Semantic roles & 50–950 ramp

primary

#643FA0

secondary

#A4BB80

accent

#D355A3

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643FA0

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

Preview Lab → · Contrast checker → · Palette generator →