#643EB9#643EB9

#643EB9 is a mid, vivid violet. Relative luminance 0.097; OKLCH L 47.8% C 0.183 H 292.2°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#643EB9
RGB	rgb(100, 62, 185)
HSL	hsl(259, 50%, 48%)
HSV	hsv(259, 66%, 73%)
CMYK	cmyk(45.9%, 66.5%, 0%, 27.5%)
CIE-LAB	lab(37.22, 45.14, -59.31)
CIE-LCH	lch(37.22, 74.53, 307.27°)
OKLab	oklab(47.84% 0.0694 -0.1697)
OKLCH	oklch(47.84% 0.183 292.2)
XYZ	xyz(15.7327, 9.6568, 46.9246)
Luminance	0.0966 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.26

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EB9 #93B93E

analogous

#3E55B9 #643EB9 #A13EB9

triadic

#643EB9 #B9643E #3EB964

tetradic

#643EB9 #B93E55 #93B93E #3EB9A1

square

#643EB9 #B93E55 #93B93E #3EB9A1

split-complementary

#643EB9 #B9A13E #55B93E

monochromatic

#321F5D #4B2F8B #643EB9 #8768CC #AB96DC

Accessibility & contrast

On white

7.16

#643EB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#643EB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EB9

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EB9	#FFFFFF	#000000	##FFFFFF
##643EB9	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BD

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#4B5C76

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643eb9;
/* rgb */ color: rgb(100, 62, 185);
/* oklch */ color: oklch(47.8% 0.183 292.2);

Tailwind

colors: {
  custom: {
    50: '#9776cf',
    500: '#643eb9',
    950: '#000000',
  },
}

SCSS

$custom: #643eb9;
$custom-light: #9776cf;
$custom-dark: #000000;

JSON

{
  "hex": "#643eb9",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 185
  },
  "hsl": {
    "h": 258.537,
    "s": 49.798,
    "l": 48.431
  },
  "oklch": {
    "l": 0.47837,
    "c": 0.18337,
    "h": 292.2
  },
  "luminance": 0.09657
}

Semantic roles & 50–950 ramp

primary

#643EB9

secondary

#B5C78C

accent

#D94EAE

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643EB9

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

Preview Lab → · Contrast checker → · Palette generator →