#643DCF#643DCF

#643DCF is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.5% C 0.211 H 288.5°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#643DCF
RGB	rgb(100, 61, 207)
HSL	hsl(256, 60%, 53%)
HSV	hsv(256, 71%, 81%)
CMYK	cmyk(51.7%, 70.5%, 0%, 18.8%)
CIE-LAB	lab(38.81, 51.84, -69.55)
CIE-LCH	lch(38.81, 86.74, 306.70°)
OKLab	oklab(49.53% 0.0667 -0.1998)
OKLCH	oklch(49.53% 0.211 288.5)
XYZ	xyz(18.1835, 10.5510, 60.0978)
Luminance	0.1055 (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

#643DCF #A8CF3D

analogous

#3D5FCF #643DCF #AD3DCF

triadic

#643DCF #CF643D #3DCF64

tetradic

#643DCF #CF3D5F #A8CF3D #3DCFAD

square

#643DCF #CF3D5F #A8CF3D #3DCFAD

split-complementary

#643DCF #CFAD3D #5FCF3D

monochromatic

#341D75 #4A29A6 #643DCF #8B6EDB #B29FE7

Accessibility & contrast

On white

6.75

#643DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#643DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DCF

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DCF	#FFFFFF	#000000	##FFFFFF
##643DCF	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD3

Deuteranopia (green-blind)

#0058CC

Tritanopia (blue-blind)

#3C6382

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643dcf;
/* rgb */ color: rgb(100, 61, 207);
/* oklch */ color: oklch(49.5% 0.211 288.5);

Tailwind

colors: {
  custom: {
    50: '#9a76df',
    500: '#643dcf',
    950: '#000000',
  },
}

SCSS

$custom: #643dcf;
$custom-light: #9a76df;
$custom-dark: #000000;

JSON

{
  "hex": "#643dcf",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 207
  },
  "hsl": {
    "h": 256.027,
    "s": 60.331,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49532,
    "c": 0.21065,
    "h": 288.5
  },
  "luminance": 0.10552
}

Semantic roles & 50–950 ramp

primary

#643DCF

secondary

#C3D494

accent

#E344B9

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643DCF

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

Preview Lab → · Contrast checker → · Palette generator →