#644DB5#644DB5

#644DB5 is a mid, vivid violet. Relative luminance 0.114; OKLCH L 49.9% C 0.158 H 289.6°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#644DB5
RGB	rgb(100, 77, 181)
HSL	hsl(253, 41%, 51%)
HSV	hsv(253, 57%, 71%)
CMYK	cmyk(44.8%, 57.5%, 0%, 29%)
CIE-LAB	lab(40.17, 35.39, -52.18)
CIE-LCH	lch(40.17, 63.05, 304.15°)
OKLab	oklab(49.89% 0.053 -0.1487)
OKLCH	oklch(49.89% 0.158 289.6)
XYZ	xyz(16.2476, 11.3527, 45.0423)
Luminance	0.1135 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DB5 #9EB54D

analogous

#4D6AB5 #644DB5 #984DB5

triadic

#644DB5 #B5644D #4DB564

tetradic

#644DB5 #B54D6A #9EB54D #4DB598

square

#644DB5 #B54D6A #9EB54D #4DB598

split-complementary

#644DB5 #B5984D #6AB54D

monochromatic

#342860 #4C3A8B #644DB5 #8A78C7 #AFA3D9

Accessibility & contrast

On white

6.42

#644DB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#644DB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DB5

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DB5	#FFFFFF	#000000	##FFFFFF
##644DB5	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0961B8

Deuteranopia (green-blind)

#105CB3

Tritanopia (blue-blind)

#4C6479

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644db5;
/* rgb */ color: rgb(100, 77, 181);
/* oklch */ color: oklch(49.9% 0.158 289.6);

Tailwind

colors: {
  custom: {
    50: '#967fcc',
    500: '#644db5',
    950: '#000000',
  },
}

SCSS

$custom: #644db5;
$custom-light: #967fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#644db5",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 181
  },
  "hsl": {
    "h": 253.269,
    "s": 41.27,
    "l": 50.588
  },
  "oklch": {
    "l": 0.49894,
    "c": 0.15791,
    "h": 289.6
  },
  "luminance": 0.11353
}

Semantic roles & 50–950 ramp

primary

#644DB5

secondary

#BCC698

accent

#D157B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644DB5

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

Preview Lab → · Contrast checker → · Palette generator →