#644CA4#644CA4

#644CA4 is a mid, vivid violet. Relative luminance 0.106; OKLCH L 48.5% C 0.137 H 293.2°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#644CA4
RGB	rgb(100, 76, 164)
HSL	hsl(256, 37%, 47%)
HSV	hsv(256, 54%, 64%)
CMYK	cmyk(39%, 53.7%, 0%, 35.7%)
CIE-LAB	lab(38.83, 31.08, -44.26)
CIE-LCH	lch(38.83, 54.09, 305.08°)
OKLab	oklab(48.55% 0.0538 -0.1255)
OKLCH	oklch(48.55% 0.137 293.2)
XYZ	xyz(14.5390, 10.5582, 36.3867)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CA4 #8CA44C

analogous

#4C60A4 #644CA4 #904CA4

triadic

#644CA4 #A4644C #4CA464

tetradic

#644CA4 #A44C60 #8CA44C #4CA490

square

#644CA4 #A44C60 #8CA44C #4CA490

split-complementary

#644CA4 #A4904C #60A44C

monochromatic

#312550 #4B397A #644CA4 #8570BD #A99AD0

Accessibility & contrast

On white

6.75

#644CA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#644CA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CA4

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CA4	#FFFFFF	#000000	##FFFFFF
##644CA4	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)

#265DA7

Deuteranopia (green-blind)

#2B5AA2

Tritanopia (blue-blind)

#545E70

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #644ca4;
/* rgb */ color: rgb(100, 76, 164);
/* oklch */ color: oklch(48.5% 0.137 293.2);

Tailwind

colors: {
  custom: {
    50: '#947ebf',
    500: '#644ca4',
    950: '#000000',
  },
}

SCSS

$custom: #644ca4;
$custom-light: #947ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#644ca4",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 164
  },
  "hsl": {
    "h": 256.364,
    "s": 36.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.48547,
    "c": 0.13653,
    "h": 293.2
  },
  "luminance": 0.10559
}

Semantic roles & 50–950 ramp

primary

#644CA4

secondary

#B0BD8F

accent

#CD5BAE

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644CA4

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

Preview Lab → · Contrast checker → · Palette generator →