#643BC6#643BC6

#643BC6 is a mid, highly saturated violet. Relative luminance 0.099; OKLCH L 48.5% C 0.202 H 290.3°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#643BC6
RGB	rgb(100, 59, 198)
HSL	hsl(258, 55%, 50%)
HSV	hsv(258, 70%, 78%)
CMYK	cmyk(49.5%, 70.2%, 0%, 22.4%)
CIE-LAB	lab(37.69, 50.36, -66.17)
CIE-LCH	lch(37.69, 83.15, 307.27°)
OKLab	oklab(48.5% 0.0702 -0.1899)
OKLCH	oklch(48.5% 0.202 290.3)
XYZ	xyz(17.0096, 9.9138, 54.4324)
Luminance	0.0991 (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

#643BC6 #9DC63B

analogous

#3B57C6 #643BC6 #AA3BC6

triadic

#643BC6 #C6643B #3BC664

tetradic

#643BC6 #C63B57 #9DC63B #3BC6AA

square

#643BC6 #C63B57 #9DC63B #3BC6AA

split-complementary

#643BC6 #C6AA3B #57C63B

monochromatic

#341E68 #4C2C98 #643BC6 #896AD4 #AF9AE2

Accessibility & contrast

On white

7.04

#643BC6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#643BC6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BC6

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BC6	#FFFFFF	#000000	##FFFFFF
##643BC6	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCA

Deuteranopia (green-blind)

#0055C3

Tritanopia (blue-blind)

#435F7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643bc6;
/* rgb */ color: rgb(100, 59, 198);
/* oklch */ color: oklch(48.5% 0.202 290.3);

Tailwind

colors: {
  custom: {
    50: '#9974d8',
    500: '#643bc6',
    950: '#000000',
  },
}

SCSS

$custom: #643bc6;
$custom-light: #9974d8;
$custom-dark: #000000;

JSON

{
  "hex": "#643bc6",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 198
  },
  "hsl": {
    "h": 257.698,
    "s": 54.941,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48497,
    "c": 0.20243,
    "h": 290.3
  },
  "luminance": 0.09914
}

Semantic roles & 50–950 ramp

primary

#643BC6

secondary

#BBCD8F

accent

#DE4AB2

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643BC6

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

Preview Lab → · Contrast checker → · Palette generator →