#644ACC#644ACC

#644ACC is a mid, vivid violet. Relative luminance 0.120; OKLCH L 51.1% C 0.192 H 286.7°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#644ACC
RGB	rgb(100, 74, 204)
HSL	hsl(252, 56%, 55%)
HSV	hsv(252, 64%, 80%)
CMYK	cmyk(51%, 63.7%, 0%, 20%)
CIE-LAB	lab(41.16, 43.90, -63.99)
CIE-LCH	lch(41.16, 77.60, 304.46°)
OKLab	oklab(51.15% 0.0551 -0.1835)
OKLCH	oklch(51.15% 0.192 286.7)
XYZ	xyz(18.6002, 11.9656, 58.4446)
Luminance	0.1197 (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

#644ACC #B2CC4A

analogous

#4A71CC #644ACC #A54ACC

triadic

#644ACC #CC644A #4ACC64

tetradic

#644ACC #CC4A71 #B2CC4A #4ACCA5

square

#644ACC #CC4A71 #B2CC4A #4ACCA5

split-complementary

#644ACC #CCA54A #71CC4A

monochromatic

#342279 #4830A9 #644ACC #8D7AD9 #B6A9E7

Accessibility & contrast

On white

6.19

#644ACC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#644ACC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644ACC

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644ACC	#FFFFFF	#000000	##FFFFFF
##644ACC	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D0

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#3D6A84

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #644acc;
/* rgb */ color: rgb(100, 74, 204);
/* oklch */ color: oklch(51.1% 0.192 286.7);

Tailwind

colors: {
  custom: {
    50: '#997edc',
    500: '#644acc',
    950: '#000000',
  },
}

SCSS

$custom: #644acc;
$custom-light: #997edc;
$custom-dark: #000000;

JSON

{
  "hex": "#644acc",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 204
  },
  "hsl": {
    "h": 252,
    "s": 56.034,
    "l": 54.51
  },
  "oklch": {
    "l": 0.51145,
    "c": 0.19156,
    "h": 286.7
  },
  "luminance": 0.11967
}

Semantic roles & 50–950 ramp

primary

#644ACC

secondary

#C9D49D

accent

#DF48C1

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644ACC

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

Preview Lab → · Contrast checker → · Palette generator →