#643FB2#643FB2

#643FB2 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.4% C 0.174 H 293.5°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#643FB2
RGB	rgb(100, 63, 178)
HSL	hsl(259, 48%, 47%)
HSV	hsv(259, 65%, 70%)
CMYK	cmyk(43.8%, 64.6%, 0%, 30.2%)
CIE-LAB	lab(36.89, 42.63, -55.71)
CIE-LCH	lch(36.89, 70.15, 307.42°)
OKLab	oklab(47.43% 0.0692 -0.1592)
OKLCH	oklch(47.43% 0.174 293.5)
XYZ	xyz(15.0667, 9.4783, 43.1465)
Luminance	0.0948 (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

#643FB2 #8DB23F

analogous

#3F54B2 #643FB2 #9D3FB2

triadic

#643FB2 #B2643F #3FB264

tetradic

#643FB2 #B23F54 #8DB23F #3FB29D

square

#643FB2 #B23F54 #8DB23F #3FB29D

split-complementary

#643FB2 #B29D3F #54B23F

monochromatic

#311F58 #4B2F85 #643FB2 #8566C9 #A993D9

Accessibility & contrast

On white

7.25

#643FB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#643FB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FB2

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FB2	#FFFFFF	#000000	##FFFFFF
##643FB2	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#0055B0

Tritanopia (blue-blind)

#4E5A73

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #643fb2;
/* rgb */ color: rgb(100, 63, 178);
/* oklch */ color: oklch(47.4% 0.174 293.5);

Tailwind

colors: {
  custom: {
    50: '#9676ca',
    500: '#643fb2',
    950: '#000000',
  },
}

SCSS

$custom: #643fb2;
$custom-light: #9676ca;
$custom-dark: #000000;

JSON

{
  "hex": "#643fb2",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 178
  },
  "hsl": {
    "h": 259.304,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47432,
    "c": 0.17352,
    "h": 293.5
  },
  "luminance": 0.09479
}

Semantic roles & 50–950 ramp

primary

#643FB2

secondary

#B1C489

accent

#D750AC

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #643FB2

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

Preview Lab → · Contrast checker → · Palette generator →