#644C66#644C66

#644C66 is a mid, muted purple. Relative luminance 0.088; OKLCH L 45.1% C 0.051 H 323.8°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#644C66
RGB	rgb(100, 76, 102)
HSL	hsl(295, 15%, 35%)
HSV	hsv(295, 25%, 40%)
CMYK	cmyk(2%, 25.5%, 0%, 60%)
CIE-LAB	lab(35.67, 15.18, -11.22)
CIE-LCH	lch(35.67, 18.88, 323.55°)
OKLab	oklab(45.14% 0.0414 -0.0303)
OKLCH	oklch(45.14% 0.051 323.8)
XYZ	xyz(10.2380, 8.8378, 13.7343)
Luminance	0.0884 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644C66 #4E664C

analogous

#574C66 #644C66 #664C5B

triadic

#644C66 #66644C #4C6664

tetradic

#644C66 #66574C #4E664C #4C5B66

square

#644C66 #66574C #4E664C #4C5B66

split-complementary

#644C66 #5B664C #4C6657

monochromatic

#1F1820 #423243 #644C66 #866689 #A387A6

Accessibility & contrast

On white

7.59

#644C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#644C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644C66

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644C66	#FFFFFF	#000000	##FFFFFF
##644C66	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5267

Deuteranopia (green-blind)

#4F5565

Tritanopia (blue-blind)

#654E55

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #644c66;
/* rgb */ color: rgb(100, 76, 102);
/* oklch */ color: oklch(45.1% 0.051 323.8);

Tailwind

colors: {
  custom: {
    50: '#907e91',
    500: '#644c66',
    950: '#000000',
  },
}

SCSS

$custom: #644c66;
$custom-light: #907e91;
$custom-dark: #000000;

JSON

{
  "hex": "#644c66",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 102
  },
  "hsl": {
    "h": 295.385,
    "s": 14.607,
    "l": 34.902
  },
  "oklch": {
    "l": 0.45136,
    "c": 0.05131,
    "h": 323.8
  },
  "luminance": 0.08838
}

Semantic roles & 50–950 ramp

primary

#644C66

secondary

#7D937B

accent

#B77076

background

#F8F7F8

surface

#F0EEF0

border

#CBC9CB

text

#0C0A0C

muted

#7D7C7D

Preview Lab

Preview with #644C66

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

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