#644A6A#644A6A

#644A6A is a dark, moderate purple. Relative luminance 0.086; OKLCH L 44.9% C 0.060 H 319.9°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#644A6A
RGB	rgb(100, 74, 106)
HSL	hsl(289, 18%, 35%)
HSV	hsv(289, 30%, 42%)
CMYK	cmyk(5.7%, 30.2%, 0%, 58.4%)
CIE-LAB	lab(35.30, 17.31, -14.29)
CIE-LCH	lch(35.30, 22.45, 320.46°)
OKLab	oklab(44.9% 0.0462 -0.0388)
OKLCH	oklch(44.9% 0.06 319.9)
XYZ	xyz(10.3055, 8.6477, 14.7592)
Luminance	0.0865 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644A6A #506A4A

analogous

#544A6A #644A6A #6A4A60

triadic

#644A6A #6A644A #4A6A64

tetradic

#644A6A #6A544A #506A4A #4A606A

square

#644A6A #6A544A #506A4A #4A606A

split-complementary

#644A6A #606A4A #4A6A54

monochromatic

#201822 #423146 #644A6A #86638E #A385AA

Accessibility & contrast

On white

7.69

#644A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#644A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644A6A

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644A6A	#FFFFFF	#000000	##FFFFFF
##644A6A	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46516B

Deuteranopia (green-blind)

#4C5469

Tritanopia (blue-blind)

#654D55

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #644a6a;
/* rgb */ color: rgb(100, 74, 106);
/* oklch */ color: oklch(44.9% 0.060 319.9);

Tailwind

colors: {
  custom: {
    50: '#907d94',
    500: '#644a6a',
    950: '#000000',
  },
}

SCSS

$custom: #644a6a;
$custom-light: #907d94;
$custom-dark: #000000;

JSON

{
  "hex": "#644a6a",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 106
  },
  "hsl": {
    "h": 288.75,
    "s": 17.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.44903,
    "c": 0.06036,
    "h": 319.9
  },
  "luminance": 0.08647
}

Semantic roles & 50–950 ramp

primary

#644A6A

secondary

#7F9779

accent

#BA6D7C

background

#F8F7F9

surface

#F0EEF1

border

#CBC9CB

text

#0C090D

muted

#7D7B7E

Preview Lab

Preview with #644A6A

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

Preview Lab → · Contrast checker → · Palette generator →