#644FCC#644FCC

#644FCC is a mid, vivid violet. Relative luminance 0.127; OKLCH L 51.9% C 0.185 H 285.7°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#644FCC
RGB	rgb(100, 79, 204)
HSL	hsl(250, 55%, 55%)
HSV	hsv(250, 61%, 80%)
CMYK	cmyk(51%, 61.3%, 0%, 20%)
CIE-LAB	lab(42.25, 41.02, -62.22)
CIE-LCH	lch(42.25, 74.53, 303.40°)
OKLab	oklab(51.93% 0.05 -0.1783)
OKLCH	oklch(51.93% 0.185 285.7)
XYZ	xyz(18.9474, 12.6600, 58.5603)
Luminance	0.1266 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FCC #B7CC4F

analogous

#4F78CC #644FCC #A24FCC

triadic

#644FCC #CC644F #4FCC64

tetradic

#644FCC #CC4F78 #B7CC4F #4FCCA2

square

#644FCC #CC4F78 #B7CC4F #4FCCA2

split-complementary

#644FCC #CCA24F #78CC4F

monochromatic

#33247D #4632AC #644FCC #8E7EDA #B8AEE7

Accessibility & contrast

On white

5.95

#644FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#644FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FCC

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FCC	#FFFFFF	#000000	##FFFFFF
##644FCC	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D0

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#3D6D86

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #644fcc;
/* rgb */ color: rgb(100, 79, 204);
/* oklch */ color: oklch(51.9% 0.185 285.7);

Tailwind

colors: {
  custom: {
    50: '#9881dc',
    500: '#644fcc',
    950: '#000000',
  },
}

SCSS

$custom: #644fcc;
$custom-light: #9881dc;
$custom-dark: #000000;

JSON

{
  "hex": "#644fcc",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 204
  },
  "hsl": {
    "h": 250.08,
    "s": 55.066,
    "l": 55.49
  },
  "oklch": {
    "l": 0.51935,
    "c": 0.18517,
    "h": 285.7
  },
  "luminance": 0.12661
}

Semantic roles & 50–950 ramp

primary

#644FCC

secondary

#CDD5A1

accent

#DE49C5

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644FCC

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

Preview Lab → · Contrast checker → · Palette generator →