#644AAA#644AAA

#644AAA is a mid, vivid violet. Relative luminance 0.105; OKLCH L 48.6% C 0.148 H 292.5°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#644AAA
RGB	rgb(100, 74, 170)
HSL	hsl(256, 39%, 48%)
HSV	hsv(256, 56%, 67%)
CMYK	cmyk(41.2%, 56.5%, 0%, 33.3%)
CIE-LAB	lab(38.74, 34.00, -47.97)
CIE-LCH	lch(38.74, 58.80, 305.33°)
OKLab	oklab(48.61% 0.0566 -0.1364)
OKLCH	oklch(48.61% 0.148 292.5)
XYZ	xyz(14.9581, 10.5088, 39.2627)
Luminance	0.1051 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644AAA #90AA4A

analogous

#4A60AA #644AAA #944AAA

triadic

#644AAA #AA644A #4AAA64

tetradic

#644AAA #AA4A60 #90AA4A #4AAA94

square

#644AAA #AA4A60 #90AA4A #4AAA94

split-complementary

#644AAA #AA944A #60AA4A

monochromatic

#322555 #4B377F #644AAA #8670C1 #AA9BD3

Accessibility & contrast

On white

6.77

#644AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#644AAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644AAA

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644AAA	#FFFFFF	#000000	##FFFFFF
##644AAA	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#185DAD

Deuteranopia (green-blind)

#2059A8

Tritanopia (blue-blind)

#515E73

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #644aaa;
/* rgb */ color: rgb(100, 74, 170);
/* oklch */ color: oklch(48.6% 0.148 292.5);

Tailwind

colors: {
  custom: {
    50: '#957dc4',
    500: '#644aaa',
    950: '#000000',
  },
}

SCSS

$custom: #644aaa;
$custom-light: #957dc4;
$custom-dark: #000000;

JSON

{
  "hex": "#644aaa",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 170
  },
  "hsl": {
    "h": 256.25,
    "s": 39.344,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48607,
    "c": 0.14766,
    "h": 292.5
  },
  "luminance": 0.10509
}

Semantic roles & 50–950 ramp

primary

#644AAA

secondary

#B3C090

accent

#CF59AF

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644AAA

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

Preview Lab → · Contrast checker → · Palette generator →