#644CA6#644CA6

#644CA6 is a mid, vivid violet. Relative luminance 0.106; OKLCH L 48.7% C 0.139 H 292.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#644CA6
RGB	rgb(100, 76, 166)
HSL	hsl(256, 37%, 47%)
HSV	hsv(256, 54%, 65%)
CMYK	cmyk(39.8%, 54.2%, 0%, 34.9%)
CIE-LAB	lab(38.95, 31.65, -45.25)
CIE-LCH	lch(38.95, 55.23, 304.97°)
OKLab	oklab(48.68% 0.0539 -0.1284)
OKLCH	oklch(48.68% 0.139 292.8)
XYZ	xyz(14.7211, 10.6310, 37.3454)
Luminance	0.1063 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CA6 #8EA64C

analogous

#4C61A6 #644CA6 #914CA6

triadic

#644CA6 #A6644C #4CA664

tetradic

#644CA6 #A64C61 #8EA64C #4CA691

square

#644CA6 #A64C61 #8EA64C #4CA691

split-complementary

#644CA6 #A6914C #61A64C

monochromatic

#312652 #4B397C #644CA6 #8671BE #AA9BD1

Accessibility & contrast

On white

6.72

#644CA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#644CA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CA6

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CA6	#FFFFFF	#000000	##FFFFFF
##644CA6	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245DA9

Deuteranopia (green-blind)

#295AA4

Tritanopia (blue-blind)

#535F71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644ca6;
/* rgb */ color: rgb(100, 76, 166);
/* oklch */ color: oklch(48.7% 0.139 292.8);

Tailwind

colors: {
  custom: {
    50: '#947fc1',
    500: '#644ca6',
    950: '#000000',
  },
}

SCSS

$custom: #644ca6;
$custom-light: #947fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#644ca6",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 166
  },
  "hsl": {
    "h": 256,
    "s": 37.19,
    "l": 47.451
  },
  "oklch": {
    "l": 0.4868,
    "c": 0.13925,
    "h": 292.8
  },
  "luminance": 0.10631
}

Semantic roles & 50–950 ramp

primary

#644CA6

secondary

#B2BE90

accent

#CD5BAF

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644CA6

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

Preview Lab → · Contrast checker → · Palette generator →