#643FCA#643FCA

#643FCA is a mid, highly saturated violet. Relative luminance 0.105; OKLCH L 49.4% C 0.203 H 289.0°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#643FCA
RGB	rgb(100, 63, 202)
HSL	hsl(256, 57%, 52%)
HSV	hsv(256, 69%, 79%)
CMYK	cmyk(50.5%, 68.8%, 0%, 20.8%)
CIE-LAB	lab(38.77, 49.38, -66.72)
CIE-LCH	lch(38.77, 83.01, 306.51°)
OKLab	oklab(49.38% 0.0659 -0.1915)
OKLCH	oklch(49.38% 0.203 289)
XYZ	xyz(17.6906, 10.5278, 56.9656)
Luminance	0.1053 (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

#643FCA #A5CA3F

analogous

#3F60CA #643FCA #AA3FCA

triadic

#643FCA #CA643F #3FCA64

tetradic

#643FCA #CA3F60 #A5CA3F #3FCAAA

square

#643FCA #CA3F60 #A5CA3F #3FCAAA

split-complementary

#643FCA #CAAA3F #60CA3F

monochromatic

#341F70 #4B2CA0 #643FCA #8B6FD7 #B19FE4

Accessibility & contrast

On white

6.76

#643FCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#643FCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FCA

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FCA	#FFFFFF	#000000	##FFFFFF
##643FCA	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECE

Deuteranopia (green-blind)

#0058C7

Tritanopia (blue-blind)

#406380

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643fca;
/* rgb */ color: rgb(100, 63, 202);
/* oklch */ color: oklch(49.4% 0.203 289.0);

Tailwind

colors: {
  custom: {
    50: '#9977db',
    500: '#643fca',
    950: '#000000',
  },
}

SCSS

$custom: #643fca;
$custom-light: #9977db;
$custom-dark: #000000;

JSON

{
  "hex": "#643fca",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 202
  },
  "hsl": {
    "h": 255.971,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49375,
    "c": 0.2025,
    "h": 289
  },
  "luminance": 0.10529
}

Semantic roles & 50–950 ramp

primary

#643FCA

secondary

#C1D194

accent

#E048B7

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643FCA

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

Preview Lab → · Contrast checker → · Palette generator →