#643EA3#643EA3

#643EA3 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.1% C 0.156 H 297.2°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#643EA3
RGB	rgb(100, 62, 163)
HSL	hsl(263, 45%, 44%)
HSV	hsv(263, 62%, 64%)
CMYK	cmyk(38.7%, 62%, 0%, 36.1%)
CIE-LAB	lab(35.59, 39.05, -48.86)
CIE-LCH	lch(35.59, 62.55, 308.63°)
OKLab	oklab(46.15% 0.0715 -0.139)
OKLCH	oklch(46.15% 0.156 297.2)
XYZ	xyz(13.5873, 8.7987, 35.6257)
Luminance	0.0880 (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

#643EA3 #7DA33E

analogous

#3E4BA3 #643EA3 #973EA3

triadic

#643EA3 #A3643E #3EA364

tetradic

#643EA3 #A33E4B #7DA33E #3EA397

square

#643EA3 #A33E4B #7DA33E #3EA397

split-complementary

#643EA3 #A3973E #4BA33E

monochromatic

#2E1C4A #492D77 #643EA3 #835DC1 #A589D2

Accessibility & contrast

On white

7.61

#643EA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#643EA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA3

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA3	#FFFFFF	#000000	##FFFFFF
##643EA3	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)

#0054A6

Deuteranopia (green-blind)

#0F53A1

Tritanopia (blue-blind)

#55546A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ea3;
/* rgb */ color: rgb(100, 62, 163);
/* oklch */ color: oklch(46.1% 0.156 297.2);

Tailwind

colors: {
  custom: {
    50: '#9575bf',
    500: '#643ea3',
    950: '#000000',
  },
}

SCSS

$custom: #643ea3;
$custom-light: #9575bf;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea3",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 163
  },
  "hsl": {
    "h": 262.574,
    "s": 44.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.46148,
    "c": 0.15629,
    "h": 297.2
  },
  "luminance": 0.08799
}

Semantic roles & 50–950 ramp

primary

#643EA3

secondary

#A6BD80

accent

#D553A4

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA3

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

Preview Lab → · Contrast checker → · Palette generator →