#644CB7#644CB7

#644CB7 is a mid, vivid violet. Relative luminance 0.113; OKLCH L 49.9% C 0.162 H 289.5°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#644CB7
RGB	rgb(100, 76, 183)
HSL	hsl(253, 43%, 51%)
HSV	hsv(253, 58%, 72%)
CMYK	cmyk(45.4%, 58.5%, 0%, 28.2%)
CIE-LAB	lab(40.08, 36.57, -53.51)
CIE-LCH	lch(40.08, 64.81, 304.35°)
OKLab	oklab(49.87% 0.0542 -0.1526)
OKLCH	oklch(49.87% 0.162 289.5)
XYZ	xyz(16.3848, 11.2965, 46.1077)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CB7 #9FB74C

analogous

#4C69B7 #644CB7 #994CB7

triadic

#644CB7 #B7644C #4CB764

tetradic

#644CB7 #B74C69 #9FB74C #4CB799

square

#644CB7 #B74C69 #9FB74C #4CB799

split-complementary

#644CB7 #B7994C #69B74C

monochromatic

#342761 #4C398D #644CB7 #8A78C9 #B0A3DA

Accessibility & contrast

On white

6.44

#644CB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#644CB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB7

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB7	#FFFFFF	#000000	##FFFFFF
##644CB7	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BB

Deuteranopia (green-blind)

#035CB5

Tritanopia (blue-blind)

#4B647A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644cb7;
/* rgb */ color: rgb(100, 76, 183);
/* oklch */ color: oklch(49.9% 0.162 289.5);

Tailwind

colors: {
  custom: {
    50: '#967fcd',
    500: '#644cb7',
    950: '#000000',
  },
}

SCSS

$custom: #644cb7;
$custom-light: #967fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb7",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 183
  },
  "hsl": {
    "h": 253.458,
    "s": 42.629,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4987,
    "c": 0.16197,
    "h": 289.5
  },
  "luminance": 0.11297
}

Semantic roles & 50–950 ramp

primary

#644CB7

secondary

#BCC798

accent

#D255B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644CB7

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

Preview Lab → · Contrast checker → · Palette generator →