#643EB7#643EB7

#643EB7 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 47.7% C 0.181 H 292.6°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#643EB7
RGB	rgb(100, 62, 183)
HSL	hsl(259, 49%, 48%)
HSV	hsv(259, 66%, 72%)
CMYK	cmyk(45.4%, 66.1%, 0%, 28.2%)
CIE-LAB	lab(37.06, 44.58, -58.38)
CIE-LCH	lch(37.06, 73.46, 307.36°)
OKLab	oklab(47.68% 0.0697 -0.167)
OKLCH	oklch(47.68% 0.181 292.6)
XYZ	xyz(15.5230, 9.5730, 45.8204)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.54

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EB7 #91B73E

analogous

#3E54B7 #643EB7 #A03EB7

triadic

#643EB7 #B7643E #3EB764

tetradic

#643EB7 #B73E54 #91B73E #3EB7A0

square

#643EB7 #B73E54 #91B73E #3EB7A0

split-complementary

#643EB7 #B7A03E #54B73E

monochromatic

#321F5C #4B2F89 #643EB7 #8667CB #AB94DB

Accessibility & contrast

On white

7.21

#643EB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#643EB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EB7

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EB7	#FFFFFF	#000000	##FFFFFF
##643EB7	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BB

Deuteranopia (green-blind)

#0055B5

Tritanopia (blue-blind)

#4C5B75

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #643eb7;
/* rgb */ color: rgb(100, 62, 183);
/* oklch */ color: oklch(47.7% 0.181 292.6);

Tailwind

colors: {
  custom: {
    50: '#9776cd',
    500: '#643eb7',
    950: '#000000',
  },
}

SCSS

$custom: #643eb7;
$custom-light: #9776cd;
$custom-dark: #000000;

JSON

{
  "hex": "#643eb7",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 183
  },
  "hsl": {
    "h": 258.843,
    "s": 49.388,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47677,
    "c": 0.18095,
    "h": 292.6
  },
  "luminance": 0.09573
}

Semantic roles & 50–950 ramp

primary

#643EB7

secondary

#B4C68A

accent

#D94FAE

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643EB7

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

Preview Lab → · Contrast checker → · Palette generator →