#644CA5#644CA5

#644CA5 is a mid, vivid violet. Relative luminance 0.106; OKLCH L 48.6% C 0.138 H 293.0°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#644CA5
RGB	rgb(100, 76, 165)
HSL	hsl(256, 37%, 47%)
HSV	hsv(256, 54%, 65%)
CMYK	cmyk(39.4%, 53.9%, 0%, 35.3%)
CIE-LAB	lab(38.89, 31.37, -44.76)
CIE-LCH	lch(38.89, 54.66, 305.02°)
OKLab	oklab(48.61% 0.0539 -0.1269)
OKLCH	oklch(48.61% 0.138 293)
XYZ	xyz(14.6297, 10.5945, 36.8642)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CA5 #8DA54C

analogous

#4C61A5 #644CA5 #914CA5

triadic

#644CA5 #A5644C #4CA564

tetradic

#644CA5 #A54C61 #8DA54C #4CA591

square

#644CA5 #A54C61 #8DA54C #4CA591

split-complementary

#644CA5 #A5914C #61A54C

monochromatic

#312551 #4B397B #644CA5 #8571BD #A99BD1

Accessibility & contrast

On white

6.73

#644CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#644CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CA5

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CA5	#FFFFFF	#000000	##FFFFFF
##644CA5	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255DA8

Deuteranopia (green-blind)

#2A5AA3

Tritanopia (blue-blind)

#535E71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644ca5;
/* rgb */ color: rgb(100, 76, 165);
/* oklch */ color: oklch(48.6% 0.138 293.0);

Tailwind

colors: {
  custom: {
    50: '#947fc0',
    500: '#644ca5',
    950: '#000000',
  },
}

SCSS

$custom: #644ca5;
$custom-light: #947fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#644ca5",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 165
  },
  "hsl": {
    "h": 256.18,
    "s": 36.929,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48613,
    "c": 0.13789,
    "h": 293
  },
  "luminance": 0.10595
}

Semantic roles & 50–950 ramp

primary

#644CA5

secondary

#B1BD8F

accent

#CD5BAE

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644CA5

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

Preview Lab → · Contrast checker → · Palette generator →