#644CCF#644CCF

#644CCF is a mid, vivid violet. Relative luminance 0.124; OKLCH L 51.7% C 0.193 H 285.9°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#644CCF
RGB	rgb(100, 76, 207)
HSL	hsl(251, 58%, 55%)
HSV	hsv(251, 63%, 81%)
CMYK	cmyk(51.7%, 63.3%, 0%, 18.8%)
CIE-LAB	lab(41.82, 43.65, -64.65)
CIE-LCH	lch(41.82, 78.01, 304.03°)
OKLab	oklab(51.69% 0.0528 -0.1854)
OKLCH	oklch(51.69% 0.193 285.9)
XYZ	xyz(19.0991, 12.3822, 60.4030)
Luminance	0.1238 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CCF #B7CF4C

analogous

#4C76CF #644CCF #A54CCF

triadic

#644CCF #CF644C #4CCF64

tetradic

#644CCF #CF4C76 #B7CF4C #4CCFA5

square

#644CCF #CF4C76 #B7CF4C #4CCFA5

split-complementary

#644CCF #CFA54C #76CF4C

monochromatic

#33227F #462FAF #644CCF #8E7CDC #B8ADE9

Accessibility & contrast

On white

6.04

#644CCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#644CCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CCF

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CCF	#FFFFFF	#000000	##FFFFFF
##644CCF	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D3

Deuteranopia (green-blind)

#005FCC

Tritanopia (blue-blind)

#3A6C86

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #644ccf;
/* rgb */ color: rgb(100, 76, 207);
/* oklch */ color: oklch(51.7% 0.193 285.9);

Tailwind

colors: {
  custom: {
    50: '#997fdf',
    500: '#644ccf',
    950: '#000000',
  },
}

SCSS

$custom: #644ccf;
$custom-light: #997fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#644ccf",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 207
  },
  "hsl": {
    "h": 250.992,
    "s": 57.709,
    "l": 55.49
  },
  "oklch": {
    "l": 0.51693,
    "c": 0.1928,
    "h": 285.9
  },
  "luminance": 0.12383
}

Semantic roles & 50–950 ramp

primary

#644CCF

secondary

#CDD7A0

accent

#E147C5

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644CCF

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

Preview Lab → · Contrast checker → · Palette generator →