#644CB8#644CB8

#644CB8 is a mid, vivid violet. Relative luminance 0.113; OKLCH L 49.9% C 0.163 H 289.4°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#644CB8
RGB	rgb(100, 76, 184)
HSL	hsl(253, 43%, 51%)
HSV	hsv(253, 59%, 72%)
CMYK	cmyk(45.7%, 58.7%, 0%, 27.8%)
CIE-LAB	lab(40.14, 36.86, -53.98)
CIE-LCH	lch(40.14, 65.37, 304.33°)
OKLab	oklab(49.94% 0.0541 -0.154)
OKLCH	oklch(49.94% 0.163 289.4)
XYZ	xyz(16.4893, 11.3383, 46.6578)
Luminance	0.1134 (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

#644CB8 #A0B84C

analogous

#4C6AB8 #644CB8 #9A4CB8

triadic

#644CB8 #B8644C #4CB864

tetradic

#644CB8 #B84C6A #A0B84C #4CB89A

square

#644CB8 #B84C6A #A0B84C #4CB89A

split-complementary

#644CB8 #B89A4C #6AB84C

monochromatic

#342763 #4C388E #644CB8 #8A78C9 #B0A4DB

Accessibility & contrast

On white

6.43

#644CB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#644CB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB8

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB8	#FFFFFF	#000000	##FFFFFF
##644CB8	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BC

Deuteranopia (green-blind)

#005CB6

Tritanopia (blue-blind)

#4A647A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644cb8;
/* rgb */ color: rgb(100, 76, 184);
/* oklch */ color: oklch(49.9% 0.163 289.4);

Tailwind

colors: {
  custom: {
    50: '#967fce',
    500: '#644cb8',
    950: '#000000',
  },
}

SCSS

$custom: #644cb8;
$custom-light: #967fce;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb8",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 184
  },
  "hsl": {
    "h": 253.333,
    "s": 43.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.49942,
    "c": 0.16329,
    "h": 289.4
  },
  "luminance": 0.11339
}

Semantic roles & 50–950 ramp

primary

#644CB8

secondary

#BDC898

accent

#D355B7

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644CB8

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

Preview Lab → · Contrast checker → · Palette generator →