#644CCB#644CCB

#644CCB is a mid, vivid violet. Relative luminance 0.122; OKLCH L 51.4% C 0.188 H 286.4°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#644CCB
RGB	rgb(100, 76, 203)
HSL	hsl(251, 55%, 55%)
HSV	hsv(251, 63%, 80%)
CMYK	cmyk(50.7%, 62.6%, 0%, 20.4%)
CIE-LAB	lab(41.52, 42.46, -62.83)
CIE-LCH	lch(41.52, 75.83, 304.05°)
OKLab	oklab(51.38% 0.0532 -0.1801)
OKLCH	oklch(51.38% 0.188 286.4)
XYZ	xyz(18.6163, 12.1891, 57.8601)
Luminance	0.1219 (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

#644CCB #B3CB4C

analogous

#4C73CB #644CCB #A44CCB

triadic

#644CCB #CB644C #4CCB64

tetradic

#644CCB #CB4C73 #B3CB4C #4CCBA4

square

#644CCB #CB4C73 #B3CB4C #4CCBA4

split-complementary

#644CCB #CBA44C #73CB4C

monochromatic

#342379 #4831A9 #644CCB #8D7BD9 #B6ABE7

Accessibility & contrast

On white

6.11

#644CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#644CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CCB

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CCB	#FFFFFF	#000000	##FFFFFF
##644CCB	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#005EC8

Tritanopia (blue-blind)

#3E6A84

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #644ccb;
/* rgb */ color: rgb(100, 76, 203);
/* oklch */ color: oklch(51.4% 0.188 286.4);

Tailwind

colors: {
  custom: {
    50: '#987fdc',
    500: '#644ccb',
    950: '#000000',
  },
}

SCSS

$custom: #644ccb;
$custom-light: #987fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#644ccb",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 203
  },
  "hsl": {
    "h": 251.339,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.51378,
    "c": 0.18777,
    "h": 286.4
  },
  "luminance": 0.1219
}

Semantic roles & 50–950 ramp

primary

#644CCB

secondary

#CAD49F

accent

#DE49C2

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644CCB

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

Preview Lab → · Contrast checker → · Palette generator →