#644AAB#644AAB

#644AAB is a mid, vivid violet. Relative luminance 0.105; OKLCH L 48.7% C 0.149 H 292.3°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#644AAB
RGB	rgb(100, 74, 171)
HSL	hsl(256, 40%, 48%)
HSV	hsv(256, 57%, 67%)
CMYK	cmyk(41.5%, 56.7%, 0%, 32.9%)
CIE-LAB	lab(38.81, 34.29, -48.46)
CIE-LCH	lch(38.81, 59.36, 305.28°)
OKLab	oklab(48.68% 0.0566 -0.1378)
OKLCH	oklch(48.68% 0.149 292.3)
XYZ	xyz(15.0530, 10.5467, 39.7628)
Luminance	0.1055 (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

#644AAB #91AB4A

analogous

#4A61AB #644AAB #944AAB

triadic

#644AAB #AB644A #4AAB64

tetradic

#644AAB #AB4A61 #91AB4A #4AAB94

square

#644AAB #AB4A61 #91AB4A #4AAB94

split-complementary

#644AAB #AB944A #61AB4A

monochromatic

#322556 #4B3880 #644AAB #8671C1 #AB9BD4

Accessibility & contrast

On white

6.75

#644AAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#644AAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644AAB

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644AAB	#FFFFFF	#000000	##FFFFFF
##644AAB	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165DAE

Deuteranopia (green-blind)

#1E59A9

Tritanopia (blue-blind)

#515F73

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #644aab;
/* rgb */ color: rgb(100, 74, 171);
/* oklch */ color: oklch(48.7% 0.149 292.3);

Tailwind

colors: {
  custom: {
    50: '#957dc5',
    500: '#644aab',
    950: '#000000',
  },
}

SCSS

$custom: #644aab;
$custom-light: #957dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#644aab",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 171
  },
  "hsl": {
    "h": 256.082,
    "s": 39.592,
    "l": 48.039
  },
  "oklch": {
    "l": 0.48676,
    "c": 0.14899,
    "h": 292.3
  },
  "luminance": 0.10547
}

Semantic roles & 50–950 ramp

primary

#644AAB

secondary

#B4C090

accent

#CF58B0

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644AAB

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

Preview Lab → · Contrast checker → · Palette generator →