#644CA8#644CA8

#644CA8 is a mid, vivid violet. Relative luminance 0.107; OKLCH L 48.8% C 0.142 H 292.4°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#644CA8
RGB	rgb(100, 76, 168)
HSL	hsl(256, 38%, 48%)
HSV	hsv(256, 55%, 66%)
CMYK	cmyk(40.5%, 54.8%, 0%, 34.1%)
CIE-LAB	lab(39.08, 32.23, -46.24)
CIE-LCH	lch(39.08, 56.36, 304.87°)
OKLab	oklab(48.82% 0.054 -0.1313)
OKLCH	oklch(48.82% 0.142 292.4)
XYZ	xyz(14.9060, 10.7050, 38.3191)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CA8 #90A84C

analogous

#4C62A8 #644CA8 #924CA8

triadic

#644CA8 #A8644C #4CA864

tetradic

#644CA8 #A84C62 #90A84C #4CA892

square

#644CA8 #A84C62 #90A84C #4CA892

split-complementary

#644CA8 #A8924C #62A84C

monochromatic

#322654 #4B397E #644CA8 #8672BF #AA9CD2

Accessibility & contrast

On white

6.69

#644CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#644CA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CA8

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CA8	#FFFFFF	#000000	##FFFFFF
##644CA8	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215DAB

Deuteranopia (green-blind)

#265AA6

Tritanopia (blue-blind)

#525F72

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644ca8;
/* rgb */ color: rgb(100, 76, 168);
/* oklch */ color: oklch(48.8% 0.142 292.4);

Tailwind

colors: {
  custom: {
    50: '#947fc2',
    500: '#644ca8',
    950: '#000000',
  },
}

SCSS

$custom: #644ca8;
$custom-light: #947fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#644ca8",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 168
  },
  "hsl": {
    "h": 255.652,
    "s": 37.705,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48815,
    "c": 0.14196,
    "h": 292.4
  },
  "luminance": 0.10705
}

Semantic roles & 50–950 ramp

primary

#644CA8

secondary

#B3BF91

accent

#CE5AB0

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A12

muted

#7E7C81

Preview Lab

Preview with #644CA8

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

Preview Lab → · Contrast checker → · Palette generator →