#643BCC#643BCC

#643BCC is a mid, highly saturated violet. Relative luminance 0.102; OKLCH L 49.0% C 0.209 H 289.3°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#643BCC
RGB	rgb(100, 59, 204)
HSL	hsl(257, 59%, 52%)
HSV	hsv(257, 71%, 80%)
CMYK	cmyk(51%, 71.1%, 0%, 20%)
CIE-LAB	lab(38.19, 52.02, -68.83)
CIE-LCH	lch(38.19, 86.28, 307.08°)
OKLab	oklab(49.01% 0.069 -0.1977)
OKLCH	oklch(49.01% 0.209 289.3)
XYZ	xyz(17.7154, 10.1961, 58.1496)
Luminance	0.1020 (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

#643BCC #A3CC3B

analogous

#3B5BCC #643BCC #AD3BCC

triadic

#643BCC #CC643B #3BCC64

tetradic

#643BCC #CC3B5B #A3CC3B #3BCCAD

square

#643BCC #CC3B5B #A3CC3B #3BCCAD

split-complementary

#643BCC #CCAD3B #5BCC3B

monochromatic

#341D70 #4B2AA0 #643BCC #8A6CD9 #B19CE5

Accessibility & contrast

On white

6.91

#643BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#643BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643BCC

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BCC	#FFFFFF	#000000	##FFFFFF
##643BCC	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD0

Deuteranopia (green-blind)

#0056C9

Tritanopia (blue-blind)

#3E6180

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643bcc;
/* rgb */ color: rgb(100, 59, 204);
/* oklch */ color: oklch(49.0% 0.209 289.3);

Tailwind

colors: {
  custom: {
    50: '#9a74dd',
    500: '#643bcc',
    950: '#000000',
  },
}

SCSS

$custom: #643bcc;
$custom-light: #9a74dd;
$custom-dark: #000000;

JSON

{
  "hex": "#643bcc",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 204
  },
  "hsl": {
    "h": 256.966,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.49012,
    "c": 0.20938,
    "h": 289.3
  },
  "luminance": 0.10197
}

Semantic roles & 50–950 ramp

primary

#643BCC

secondary

#BFD192

accent

#E246B6

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643BCC

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

Preview Lab → · Contrast checker → · Palette generator →