#644CAB#644CAB

#644CAB is a mid, vivid violet. Relative luminance 0.108; OKLCH L 49.0% C 0.146 H 291.7°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#644CAB
RGB	rgb(100, 76, 171)
HSL	hsl(255, 38%, 48%)
HSV	hsv(255, 56%, 67%)
CMYK	cmyk(41.5%, 55.6%, 0%, 32.9%)
CIE-LAB	lab(39.27, 33.09, -47.71)
CIE-LCH	lch(39.27, 58.06, 304.74°)
OKLab	oklab(49.02% 0.0541 -0.1356)
OKLCH	oklch(49.02% 0.146 291.7)
XYZ	xyz(15.1887, 10.8180, 39.8080)
Luminance	0.1082 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.58

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CAB #93AB4C

analogous

#4C63AB #644CAB #934CAB

triadic

#644CAB #AB644C #4CAB64

tetradic

#644CAB #AB4C63 #93AB4C #4CAB93

square

#644CAB #AB4C63 #93AB4C #4CAB93

split-complementary

#644CAB #AB934C #63AB4C

monochromatic

#322656 #4B3981 #644CAB #8773C1 #AB9ED4

Accessibility & contrast

On white

6.64

#644CAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#644CAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CAB

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CAB	#FFFFFF	#000000	##FFFFFF
##644CAB	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5EAE

Deuteranopia (green-blind)

#225BA9

Tritanopia (blue-blind)

#516074

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644cab;
/* rgb */ color: rgb(100, 76, 171);
/* oklch */ color: oklch(49.0% 0.146 291.7);

Tailwind

colors: {
  custom: {
    50: '#957fc5',
    500: '#644cab',
    950: '#000000',
  },
}

SCSS

$custom: #644cab;
$custom-light: #957fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#644cab",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 171
  },
  "hsl": {
    "h": 255.158,
    "s": 38.462,
    "l": 48.431
  },
  "oklch": {
    "l": 0.49021,
    "c": 0.14601,
    "h": 291.7
  },
  "luminance": 0.10818
}

Semantic roles & 50–950 ramp

primary

#644CAB

secondary

#B5C092

accent

#CE59B1

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CAB

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

Preview Lab → · Contrast checker → · Palette generator →