#643FA5#643FA5

#643FA5 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.5% C 0.157 H 296.5°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#643FA5
RGB	rgb(100, 63, 165)
HSL	hsl(262, 45%, 45%)
HSV	hsv(262, 62%, 65%)
CMYK	cmyk(39.4%, 61.8%, 0%, 35.3%)
CIE-LAB	lab(35.95, 39.03, -49.49)
CIE-LCH	lch(35.95, 63.03, 308.26°)
OKLab	oklab(46.45% 0.0702 -0.1408)
OKLCH	oklch(46.45% 0.157 296.5)
XYZ	xyz(13.8228, 8.9807, 36.5952)
Luminance	0.0898 (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

#643FA5 #80A53F

analogous

#3F4DA5 #643FA5 #973FA5

triadic

#643FA5 #A5643F #3FA564

tetradic

#643FA5 #A53F4D #80A53F #3FA597

square

#643FA5 #A53F4D #80A53F #3FA597

split-complementary

#643FA5 #A5973F #4DA53F

monochromatic

#2E1D4C #492E79 #643FA5 #835FC2 #A58CD3

Accessibility & contrast

On white

7.51

#643FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#643FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FA5

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FA5	#FFFFFF	#000000	##FFFFFF
##643FA5	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A8

Deuteranopia (green-blind)

#0C53A3

Tritanopia (blue-blind)

#54556C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643fa5;
/* rgb */ color: rgb(100, 63, 165);
/* oklch */ color: oklch(46.5% 0.157 296.5);

Tailwind

colors: {
  custom: {
    50: '#9576c0',
    500: '#643fa5',
    950: '#000000',
  },
}

SCSS

$custom: #643fa5;
$custom-light: #9576c0;
$custom-dark: #000000;

JSON

{
  "hex": "#643fa5",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 165
  },
  "hsl": {
    "h": 261.765,
    "s": 44.737,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4645,
    "c": 0.15735,
    "h": 296.5
  },
  "luminance": 0.08981
}

Semantic roles & 50–950 ramp

primary

#643FA5

secondary

#A8BE82

accent

#D453A6

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643FA5

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

Preview Lab → · Contrast checker → · Palette generator →