#644CCD#644CCD

#644CCD is a mid, vivid violet. Relative luminance 0.123; OKLCH L 51.5% C 0.190 H 286.2°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#644CCD
RGB	rgb(100, 76, 205)
HSL	hsl(251, 56%, 55%)
HSV	hsv(251, 63%, 80%)
CMYK	cmyk(51.2%, 62.9%, 0%, 19.6%)
CIE-LAB	lab(41.67, 43.06, -63.74)
CIE-LCH	lch(41.67, 76.92, 304.04°)
OKLab	oklab(51.54% 0.053 -0.1827)
OKLCH	oklch(51.54% 0.19 286.2)
XYZ	xyz(18.8561, 12.2850, 59.1235)
Luminance	0.1229 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.86

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CCD #B5CD4C

analogous

#4C74CD #644CCD #A54CCD

triadic

#644CCD #CD644C #4CCD64

tetradic

#644CCD #CD4C74 #B5CD4C #4CCDA5

square

#644CCD #CD4C74 #B5CD4C #4CCDA5

split-complementary

#644CCD #CDA54C #74CD4C

monochromatic

#33237C #4730AC #644CCD #8D7CDA #B7ACE8

Accessibility & contrast

On white

6.07

#644CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#644CCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CCD

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CCD	#FFFFFF	#000000	##FFFFFF
##644CCD	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)

#0066D1

Deuteranopia (green-blind)

#005FCA

Tritanopia (blue-blind)

#3C6B85

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #644ccd;
/* rgb */ color: rgb(100, 76, 205);
/* oklch */ color: oklch(51.5% 0.190 286.2);

Tailwind

colors: {
  custom: {
    50: '#997fdd',
    500: '#644ccd',
    950: '#000000',
  },
}

SCSS

$custom: #644ccd;
$custom-light: #997fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#644ccd",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 205
  },
  "hsl": {
    "h": 251.163,
    "s": 56.332,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51535,
    "c": 0.19028,
    "h": 286.2
  },
  "luminance": 0.12286
}

Semantic roles & 50–950 ramp

primary

#644CCD

secondary

#CBD59F

accent

#E048C3

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644CCD

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

Preview Lab → · Contrast checker → · Palette generator →