#644FC4#644FC4

#644FC4 is a mid, vivid violet. Relative luminance 0.123; OKLCH L 51.3% C 0.175 H 286.8°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#644FC4
RGB	rgb(100, 79, 196)
HSL	hsl(251, 50%, 54%)
HSV	hsv(251, 60%, 77%)
CMYK	cmyk(49%, 59.7%, 0%, 23.1%)
CIE-LAB	lab(41.67, 38.63, -58.53)
CIE-LCH	lch(41.67, 70.13, 303.43°)
OKLab	oklab(51.33% 0.0504 -0.1674)
OKLCH	oklch(51.33% 0.175 286.8)
XYZ	xyz(18.0124, 12.2860, 53.6362)
Luminance	0.1229 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FC4 #AFC44F

analogous

#4F75C4 #644FC4 #9F4FC4

triadic

#644FC4 #C4644F #4FC464

tetradic

#644FC4 #C44F75 #AFC44F #4FC49F

square

#644FC4 #C44F75 #AFC44F #4FC49F

split-complementary

#644FC4 #C49F4F #75C44F

monochromatic

#342672 #4936A0 #644FC4 #8C7DD3 #B5ABE3

Accessibility & contrast

On white

6.07

#644FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#644FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FC4

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FC4	#FFFFFF	#000000	##FFFFFF
##644FC4	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C8

Deuteranopia (green-blind)

#005FC2

Tritanopia (blue-blind)

#436A82

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #644fc4;
/* rgb */ color: rgb(100, 79, 196);
/* oklch */ color: oklch(51.3% 0.175 286.8);

Tailwind

colors: {
  custom: {
    50: '#9781d7',
    500: '#644fc4',
    950: '#000000',
  },
}

SCSS

$custom: #644fc4;
$custom-light: #9781d7;
$custom-dark: #000000;

JSON

{
  "hex": "#644fc4",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 196
  },
  "hsl": {
    "h": 250.769,
    "s": 49.787,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51328,
    "c": 0.17484,
    "h": 286.8
  },
  "luminance": 0.12287
}

Semantic roles & 50–950 ramp

primary

#644FC4

secondary

#C7D09E

accent

#D94EC0

background

#F9F7FD

surface

#F2EEFA

border

#CCC9D3

text

#0E0A14

muted

#7E7C83

Preview Lab

Preview with #644FC4

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

Preview Lab → · Contrast checker → · Palette generator →