#643EA9#643EA9

#643EA9 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.6% C 0.164 H 295.7°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#643EA9
RGB	rgb(100, 62, 169)
HSL	hsl(261, 46%, 45%)
HSV	hsv(261, 63%, 66%)
CMYK	cmyk(40.8%, 63.3%, 0%, 33.7%)
CIE-LAB	lab(36.02, 40.69, -51.77)
CIE-LCH	lch(36.02, 65.85, 308.17°)
OKLab	oklab(46.59% 0.0711 -0.1475)
OKLCH	oklch(46.59% 0.164 295.7)
XYZ	xyz(14.1377, 9.0189, 38.5244)
Luminance	0.0902 (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

#643EA9 #83A93E

analogous

#3E4EA9 #643EA9 #993EA9

triadic

#643EA9 #A9643E #3EA964

tetradic

#643EA9 #A93E4E #83A93E #3EA999

square

#643EA9 #A93E4E #83A93E #3EA999

split-complementary

#643EA9 #A9993E #4EA93E

monochromatic

#2F1D4F #4A2E7C #643EA9 #8360C5 #A68CD5

Accessibility & contrast

On white

7.49

#643EA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#643EA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA9

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA9	#FFFFFF	#000000	##FFFFFF
##643EA9	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AC

Deuteranopia (green-blind)

#0053A7

Tritanopia (blue-blind)

#52566E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643ea9;
/* rgb */ color: rgb(100, 62, 169);
/* oklch */ color: oklch(46.6% 0.164 295.7);

Tailwind

colors: {
  custom: {
    50: '#9575c3',
    500: '#643ea9',
    950: '#000000',
  },
}

SCSS

$custom: #643ea9;
$custom-light: #9575c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea9",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 169
  },
  "hsl": {
    "h": 261.308,
    "s": 46.32,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46593,
    "c": 0.16377,
    "h": 295.7
  },
  "luminance": 0.09019
}

Semantic roles & 50–950 ramp

primary

#643EA9

secondary

#AAC083

accent

#D652A7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643EA9

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

Preview Lab → · Contrast checker → · Palette generator →