#643BCA#643BCA

#643BCA is a mid, highly saturated violet. Relative luminance 0.101; OKLCH L 48.8% C 0.207 H 289.6°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#643BCA
RGB	rgb(100, 59, 202)
HSL	hsl(257, 57%, 51%)
HSV	hsv(257, 71%, 79%)
CMYK	cmyk(50.5%, 70.8%, 0%, 20.8%)
CIE-LAB	lab(38.02, 51.47, -67.95)
CIE-LCH	lch(38.02, 85.24, 307.14°)
OKLab	oklab(48.84% 0.0694 -0.1951)
OKLCH	oklch(48.84% 0.207 289.6)
XYZ	xyz(17.4771, 10.1008, 56.8944)
Luminance	0.1010 (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

#643BCA #A1CA3B

analogous

#3B59CA #643BCA #AB3BCA

triadic

#643BCA #CA643B #3BCA64

tetradic

#643BCA #CA3B59 #A1CA3B #3BCAAB

square

#643BCA #CA3B59 #A1CA3B #3BCAAB

split-complementary

#643BCA #CAAB3B #59CA3B

monochromatic

#341E6D #4B2B9D #643BCA #8A6BD7 #B09BE4

Accessibility & contrast

On white

6.95

#643BCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#643BCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643BCA

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BCA	#FFFFFF	#000000	##FFFFFF
##643BCA	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCE

Deuteranopia (green-blind)

#0056C7

Tritanopia (blue-blind)

#40607E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643bca;
/* rgb */ color: rgb(100, 59, 202);
/* oklch */ color: oklch(48.8% 0.207 289.6);

Tailwind

colors: {
  custom: {
    50: '#9974db',
    500: '#643bca',
    950: '#000000',
  },
}

SCSS

$custom: #643bca;
$custom-light: #9974db;
$custom-dark: #000000;

JSON

{
  "hex": "#643bca",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 202
  },
  "hsl": {
    "h": 257.203,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.4884,
    "c": 0.20707,
    "h": 289.6
  },
  "luminance": 0.10102
}

Semantic roles & 50–950 ramp

primary

#643BCA

secondary

#BED091

accent

#E147B5

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643BCA

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

Preview Lab → · Contrast checker → · Palette generator →