#644F6F#644F6F

#644F6F is a mid, muted violet. Relative luminance 0.094; OKLCH L 46.1% C 0.057 H 313.8°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#644F6F
RGB	rgb(100, 79, 111)
HSL	hsl(279, 17%, 37%)
HSV	hsv(279, 29%, 44%)
CMYK	cmyk(9.9%, 28.8%, 0%, 56.5%)
CIE-LAB	lab(36.84, 15.34, -15.07)
CIE-LCH	lch(36.84, 21.50, 315.51°)
OKLab	oklab(46.15% 0.0394 -0.0411)
OKLCH	oklch(46.15% 0.057 313.8)
XYZ	xyz(10.9203, 9.4491, 16.2844)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644F6F #5A6F4F

analogous

#544F6F #644F6F #6F4F6A

triadic

#644F6F #6F644F #4F6F64

tetradic

#644F6F #6F544F #5A6F4F #4F6A6F

square

#644F6F #6F544F #5A6F4F #4F6A6F

split-complementary

#644F6F #6A6F4F #4F6F54

monochromatic

#241C27 #44364B #644F6F #846893 #A18CAD

Accessibility & contrast

On white

7.27

#644F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#644F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644F6F

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644F6F	#FFFFFF	#000000	##FFFFFF
##644F6F	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5570

Deuteranopia (green-blind)

#4F576E

Tritanopia (blue-blind)

#63535A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #644f6f;
/* rgb */ color: rgb(100, 79, 111);
/* oklch */ color: oklch(46.1% 0.057 313.8);

Tailwind

colors: {
  custom: {
    50: '#908098',
    500: '#644f6f',
    950: '#000000',
  },
}

SCSS

$custom: #644f6f;
$custom-light: #908098;
$custom-dark: #000000;

JSON

{
  "hex": "#644f6f",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 111
  },
  "hsl": {
    "h": 279.375,
    "s": 16.842,
    "l": 37.255
  },
  "oklch": {
    "l": 0.46147,
    "c": 0.05689,
    "h": 313.8
  },
  "luminance": 0.09449
}

Semantic roles & 50–950 ramp

primary

#644F6F

secondary

#899A7F

accent

#BA6E88

background

#F8F7F9

surface

#F0EEF2

border

#CBC9CC

text

#0C0A0D

muted

#7D7C7E

Preview Lab

Preview with #644F6F

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

Preview Lab → · Contrast checker → · Palette generator →