#644DC4#644DC4

#644DC4 is a mid, vivid violet. Relative luminance 0.120; OKLCH L 51.0% C 0.178 H 287.2°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#644DC4
RGB	rgb(100, 77, 196)
HSL	hsl(252, 50%, 54%)
HSV	hsv(252, 61%, 77%)
CMYK	cmyk(49%, 60.7%, 0%, 23.1%)
CIE-LAB	lab(41.22, 39.81, -59.25)
CIE-LCH	lch(41.22, 71.38, 303.89°)
OKLab	oklab(51% 0.0526 -0.1695)
OKLCH	oklch(51% 0.178 287.2)
XYZ	xyz(17.8703, 12.0018, 53.5888)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DC4 #ADC44D

analogous

#4D71C4 #644DC4 #9F4DC4

triadic

#644DC4 #C4644D #4DC464

tetradic

#644DC4 #C44D71 #ADC44D #4DC49F

square

#644DC4 #C44D71 #ADC44D #4DC49F

split-complementary

#644DC4 #C49F4D #71C44D

monochromatic

#342571 #49359F #644DC4 #8C7BD3 #B4A9E2

Accessibility & contrast

On white

6.18

#644DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#644DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DC4

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DC4	#FFFFFF	#000000	##FFFFFF
##644DC4	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C8

Deuteranopia (green-blind)

#005EC2

Tritanopia (blue-blind)

#436981

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #644dc4;
/* rgb */ color: rgb(100, 77, 196);
/* oklch */ color: oklch(51.0% 0.178 287.2);

Tailwind

colors: {
  custom: {
    50: '#9780d7',
    500: '#644dc4',
    950: '#000000',
  },
}

SCSS

$custom: #644dc4;
$custom-light: #9780d7;
$custom-dark: #000000;

JSON

{
  "hex": "#644dc4",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 196
  },
  "hsl": {
    "h": 251.597,
    "s": 50.211,
    "l": 53.529
  },
  "oklch": {
    "l": 0.50999,
    "c": 0.17752,
    "h": 287.2
  },
  "luminance": 0.12003
}

Semantic roles & 50–950 ramp

primary

#644DC4

secondary

#C6D09D

accent

#DA4EBF

background

#F9F7FD

surface

#F2EEFA

border

#CCC9D3

text

#0E0A14

muted

#7E7C83

Preview Lab

Preview with #644DC4

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

Preview Lab → · Contrast checker → · Palette generator →