#644FA1#644FA1

#644FA1 is a mid, vivid violet. Relative luminance 0.109; OKLCH L 48.9% C 0.128 H 292.9°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#644FA1
RGB	rgb(100, 79, 161)
HSL	hsl(255, 34%, 47%)
HSV	hsv(255, 51%, 63%)
CMYK	cmyk(37.9%, 50.9%, 0%, 36.9%)
CIE-LAB	lab(39.37, 28.41, -41.60)
CIE-LCH	lch(39.37, 50.38, 304.32°)
OKLab	oklab(48.89% 0.0496 -0.1177)
OKLCH	oklch(48.89% 0.128 292.9)
XYZ	xyz(14.4828, 10.8742, 35.0472)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FA1 #8CA14F

analogous

#4F63A1 #644FA1 #8D4FA1

triadic

#644FA1 #A1644F #4FA164

tetradic

#644FA1 #A14F63 #8CA14F #4FA18D

square

#644FA1 #A14F63 #8CA14F #4FA18D

split-complementary

#644FA1 #A18D4F #63A14F

monochromatic

#31274F #4B3B78 #644FA1 #8573BA #A99CCE

Accessibility & contrast

On white

6.61

#644FA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#644FA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FA1

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FA1	#FFFFFF	#000000	##FFFFFF
##644FA1	1.00	6.61	3.17	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5EA4

Deuteranopia (green-blind)

#335B9F

Tritanopia (blue-blind)

#555F70

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #644fa1;
/* rgb */ color: rgb(100, 79, 161);
/* oklch */ color: oklch(48.9% 0.128 292.9);

Tailwind

colors: {
  custom: {
    50: '#9381bd',
    500: '#644fa1',
    950: '#000000',
  },
}

SCSS

$custom: #644fa1;
$custom-light: #9381bd;
$custom-dark: #000000;

JSON

{
  "hex": "#644fa1",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 161
  },
  "hsl": {
    "h": 255.366,
    "s": 34.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.48891,
    "c": 0.12771,
    "h": 292.9
  },
  "luminance": 0.10874
}

Semantic roles & 50–950 ramp

primary

#644FA1

secondary

#B0BB91

accent

#CA5EAE

background

#F9F7FB

surface

#F2EEF6

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644FA1

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

Preview Lab → · Contrast checker → · Palette generator →