#643FB6#643FB6

#643FB6 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 47.7% C 0.178 H 292.7°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#643FB6
RGB	rgb(100, 63, 182)
HSL	hsl(259, 49%, 48%)
HSV	hsv(259, 65%, 71%)
CMYK	cmyk(45.1%, 65.4%, 0%, 28.6%)
CIE-LAB	lab(37.19, 43.75, -57.59)
CIE-LCH	lch(37.19, 72.32, 307.22°)
OKLab	oklab(47.74% 0.0687 -0.1647)
OKLCH	oklch(47.74% 0.178 292.7)
XYZ	xyz(15.4742, 9.6413, 45.2925)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.62

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FB6 #91B63F

analogous

#3F56B6 #643FB6 #9F3FB6

triadic

#643FB6 #B6643F #3FB664

tetradic

#643FB6 #B63F56 #91B63F #3FB69F

square

#643FB6 #B63F56 #91B63F #3FB69F

split-complementary

#643FB6 #B69F3F #56B63F

monochromatic

#32205B #4B2F89 #643FB6 #8668CB #AB95DA

Accessibility & contrast

On white

7.17

#643FB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#643FB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FB6

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FB6	#FFFFFF	#000000	##FFFFFF
##643FB6	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BA

Deuteranopia (green-blind)

#0055B4

Tritanopia (blue-blind)

#4C5B75

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #643fb6;
/* rgb */ color: rgb(100, 63, 182);
/* oklch */ color: oklch(47.7% 0.178 292.7);

Tailwind

colors: {
  custom: {
    50: '#9776cd',
    500: '#643fb6',
    950: '#000000',
  },
}

SCSS

$custom: #643fb6;
$custom-light: #9776cd;
$custom-dark: #000000;

JSON

{
  "hex": "#643fb6",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 182
  },
  "hsl": {
    "h": 258.655,
    "s": 48.571,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47744,
    "c": 0.17842,
    "h": 292.7
  },
  "luminance": 0.09642
}

Semantic roles & 50–950 ramp

primary

#643FB6

secondary

#B4C68B

accent

#D850AE

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #643FB6

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

Preview Lab → · Contrast checker → · Palette generator →