#643BC7#643BC7

#643BC7 is a mid, highly saturated violet. Relative luminance 0.100; OKLCH L 48.6% C 0.204 H 290.1°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#643BC7
RGB	rgb(100, 59, 199)
HSL	hsl(258, 56%, 51%)
HSV	hsv(258, 70%, 78%)
CMYK	cmyk(49.7%, 70.4%, 0%, 22%)
CIE-LAB	lab(37.77, 50.63, -66.61)
CIE-LCH	lch(37.77, 83.67, 307.24°)
OKLab	oklab(48.58% 0.07 -0.1912)
OKLCH	oklch(48.58% 0.204 290.1)
XYZ	xyz(17.1253, 9.9601, 55.0419)
Luminance	0.0996 (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

#643BC7 #9EC73B

analogous

#3B58C7 #643BC7 #AA3BC7

triadic

#643BC7 #C7643B #3BC764

tetradic

#643BC7 #C73B58 #9EC73B #3BC7AA

square

#643BC7 #C73B58 #9EC73B #3BC7AA

split-complementary

#643BC7 #C7AA3B #58C73B

monochromatic

#341E69 #4C2C99 #643BC7 #8A6BD5 #AF9AE2

Accessibility & contrast

On white

7.02

#643BC7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#643BC7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BC7

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BC7	#FFFFFF	#000000	##FFFFFF
##643BC7	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCB

Deuteranopia (green-blind)

#0056C4

Tritanopia (blue-blind)

#425F7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643bc7;
/* rgb */ color: rgb(100, 59, 199);
/* oklch */ color: oklch(48.6% 0.204 290.1);

Tailwind

colors: {
  custom: {
    50: '#9974d9',
    500: '#643bc7',
    950: '#000000',
  },
}

SCSS

$custom: #643bc7;
$custom-light: #9974d9;
$custom-dark: #000000;

JSON

{
  "hex": "#643bc7",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 199
  },
  "hsl": {
    "h": 257.571,
    "s": 55.556,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48583,
    "c": 0.20359,
    "h": 290.1
  },
  "luminance": 0.09961
}

Semantic roles & 50–950 ramp

primary

#643BC7

secondary

#BCCE90

accent

#DF49B3

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643BC7

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

Preview Lab → · Contrast checker → · Palette generator →