#643DCB#643DCB

#643DCB is a mid, highly saturated violet. Relative luminance 0.104; OKLCH L 49.2% C 0.206 H 289.1°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#643DCB
RGB	rgb(100, 61, 203)
HSL	hsl(256, 58%, 52%)
HSV	hsv(256, 70%, 80%)
CMYK	cmyk(50.7%, 70%, 0%, 20.4%)
CIE-LAB	lab(38.48, 50.72, -67.78)
CIE-LCH	lch(38.48, 84.66, 306.80°)
OKLab	oklab(49.19% 0.0675 -0.1946)
OKLCH	oklch(49.19% 0.206 289.1)
XYZ	xyz(17.7006, 10.3578, 57.5549)
Luminance	0.1036 (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

#643DCB #A4CB3D

analogous

#3D5DCB #643DCB #AB3DCB

triadic

#643DCB #CB643D #3DCB64

tetradic

#643DCB #CB3D5D #A4CB3D #3DCBAB

square

#643DCB #CB3D5D #A4CB3D #3DCBAB

split-complementary

#643DCB #CBAB3D #5DCB3D

monochromatic

#341E70 #4B2BA0 #643DCB #8B6DD8 #B19EE5

Accessibility & contrast

On white

6.84

#643DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#643DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DCB

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DCB	#FFFFFF	#000000	##FFFFFF
##643DCB	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCF

Deuteranopia (green-blind)

#0057C8

Tritanopia (blue-blind)

#3F6280

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643dcb;
/* rgb */ color: rgb(100, 61, 203);
/* oklch */ color: oklch(49.2% 0.206 289.1);

Tailwind

colors: {
  custom: {
    50: '#9976dc',
    500: '#643dcb',
    950: '#000000',
  },
}

SCSS

$custom: #643dcb;
$custom-light: #9976dc;
$custom-dark: #000000;

JSON

{
  "hex": "#643dcb",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 203
  },
  "hsl": {
    "h": 256.479,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49189,
    "c": 0.20598,
    "h": 289.1
  },
  "luminance": 0.10359
}

Semantic roles & 50–950 ramp

primary

#643DCB

secondary

#C0D193

accent

#E147B7

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643DCB

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

Preview Lab → · Contrast checker → · Palette generator →