#643FB0#643FB0

#643FB0 is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.3% C 0.171 H 293.9°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#643FB0
RGB	rgb(100, 63, 176)
HSL	hsl(260, 47%, 47%)
HSV	hsv(260, 64%, 69%)
CMYK	cmyk(43.2%, 64.2%, 0%, 31%)
CIE-LAB	lab(36.74, 42.07, -54.77)
CIE-LCH	lch(36.74, 69.06, 307.53°)
OKLab	oklab(47.28% 0.0694 -0.1564)
OKLCH	oklch(47.28% 0.171 293.9)
XYZ	xyz(14.8674, 9.3985, 42.0966)
Luminance	0.0940 (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

#643FB0 #8BB03F

analogous

#3F53B0 #643FB0 #9D3FB0

triadic

#643FB0 #B0643F #3FB064

tetradic

#643FB0 #B03F53 #8BB03F #3FB09D

square

#643FB0 #B03F53 #8BB03F #3FB09D

split-complementary

#643FB0 #B09D3F #53B03F

monochromatic

#311F56 #4A2F83 #643FB0 #8565C8 #A992D8

Accessibility & contrast

On white

7.29

#643FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#643FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FB0

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FB0	#FFFFFF	#000000	##FFFFFF
##643FB0	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B4

Deuteranopia (green-blind)

#0054AE

Tritanopia (blue-blind)

#4F5972

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643fb0;
/* rgb */ color: rgb(100, 63, 176);
/* oklch */ color: oklch(47.3% 0.171 293.9);

Tailwind

colors: {
  custom: {
    50: '#9676c8',
    500: '#643fb0',
    950: '#000000',
  },
}

SCSS

$custom: #643fb0;
$custom-light: #9676c8;
$custom-dark: #000000;

JSON

{
  "hex": "#643fb0",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 176
  },
  "hsl": {
    "h": 259.646,
    "s": 47.28,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47277,
    "c": 0.17106,
    "h": 293.9
  },
  "luminance": 0.09399
}

Semantic roles & 50–950 ramp

primary

#643FB0

secondary

#B0C388

accent

#D751AB

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #643FB0

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

Preview Lab → · Contrast checker → · Palette generator →