#643AA0#643AA0

#643AA0 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.3% C 0.158 H 298.9°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#643AA0
RGB	rgb(100, 58, 160)
HSL	hsl(265, 47%, 43%)
HSV	hsv(265, 64%, 63%)
CMYK	cmyk(37.5%, 63.8%, 0%, 37.3%)
CIE-LAB	lab(34.55, 40.48, -48.75)
CIE-LCH	lch(34.55, 63.37, 309.71°)
OKLab	oklab(45.32% 0.0765 -0.1386)
OKLCH	oklch(45.32% 0.158 298.9)
XYZ	xyz(13.1122, 8.2734, 34.1570)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.78

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AA0 #76A03A

analogous

#3A43A0 #643AA0 #973AA0

triadic

#643AA0 #A0643A #3AA064

tetradic

#643AA0 #A03A43 #76A03A #3AA097

square

#643AA0 #A03A43 #76A03A #3AA097

split-complementary

#643AA0 #A0973A #43A03A

monochromatic

#2C1946 #482A73 #643AA0 #8256C2 #A383D2

Accessibility & contrast

On white

7.91

#643AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#643AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AA0

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AA0	#FFFFFF	#000000	##FFFFFF
##643AA0	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A3

Deuteranopia (green-blind)

#0A509E

Tritanopia (blue-blind)

#565167

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643aa0;
/* rgb */ color: rgb(100, 58, 160);
/* oklch */ color: oklch(45.3% 0.158 298.9);

Tailwind

colors: {
  custom: {
    50: '#9572bd',
    500: '#643aa0',
    950: '#000000',
  },
}

SCSS

$custom: #643aa0;
$custom-light: #9572bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643aa0",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 160
  },
  "hsl": {
    "h": 264.706,
    "s": 46.789,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45319,
    "c": 0.15833,
    "h": 298.9
  },
  "luminance": 0.08274
}

Semantic roles & 50–950 ramp

primary

#643AA0

secondary

#A1BC7A

accent

#D651A0

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643AA0

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

Preview Lab → · Contrast checker → · Palette generator →