#644A66#644A66

#644A66 is a dark, muted purple. Relative luminance 0.086; OKLCH L 44.7% C 0.055 H 324.1°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#644A66
RGB	rgb(100, 74, 102)
HSL	hsl(296, 16%, 35%)
HSV	hsv(296, 27%, 40%)
CMYK	cmyk(2%, 27.5%, 0%, 60%)
CIE-LAB	lab(35.14, 16.43, -12.03)
CIE-LCH	lch(35.14, 20.36, 323.80°)
OKLab	oklab(44.73% 0.0449 -0.0325)
OKLCH	oklch(44.73% 0.055 324.1)
XYZ	xyz(10.1023, 8.5665, 13.6891)
Luminance	0.0857 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644A66 #4C664A

analogous

#564A66 #644A66 #664A5A

triadic

#644A66 #66644A #4A6664

tetradic

#644A66 #66564A #4C664A #4A5A66

square

#644A66 #66564A #4C664A #4A5A66

split-complementary

#644A66 #5A664A #4A6656

monochromatic

#1E171F #413043 #644A66 #876489 #A484A6

Accessibility & contrast

On white

7.74

#644A66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#644A66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644A66

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644A66	#FFFFFF	#000000	##FFFFFF
##644A66	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485167

Deuteranopia (green-blind)

#4E5465

Tritanopia (blue-blind)

#654D54

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #644a66;
/* rgb */ color: rgb(100, 74, 102);
/* oklch */ color: oklch(44.7% 0.055 324.1);

Tailwind

colors: {
  custom: {
    50: '#907c91',
    500: '#644a66',
    950: '#000000',
  },
}

SCSS

$custom: #644a66;
$custom-light: #907c91;
$custom-dark: #000000;

JSON

{
  "hex": "#644a66",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 102
  },
  "hsl": {
    "h": 295.714,
    "s": 15.909,
    "l": 34.51
  },
  "oklch": {
    "l": 0.44727,
    "c": 0.05541,
    "h": 324.1
  },
  "luminance": 0.08566
}

Semantic roles & 50–950 ramp

primary

#644A66

secondary

#7A9378

accent

#B96F74

background

#F8F7F8

surface

#F0EEF0

border

#CBC9CB

text

#0C090C

muted

#7D7B7D

Preview Lab

Preview with #644A66

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

Preview Lab → · Contrast checker → · Palette generator →