#644E63#644E63

#644E63 is a mid, muted purple. Relative luminance 0.091; OKLCH L 45.4% C 0.044 H 327.7°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#644E63
RGB	rgb(100, 78, 99)
HSL	hsl(303, 12%, 35%)
HSV	hsv(303, 22%, 39%)
CMYK	cmyk(0%, 22%, 1%, 60.8%)
CIE-LAB	lab(36.10, 13.29, -8.69)
CIE-LCH	lch(36.10, 15.88, 326.83°)
OKLab	oklab(45.43% 0.0369 -0.0233)
OKLCH	oklch(45.43% 0.044 327.7)
XYZ	xyz(10.2318, 9.0592, 13.0116)
Luminance	0.0906 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E63 #4E644F

analogous

#5A4E64 #644E63 #644E58

triadic

#644E63 #63644E #4E6364

tetradic

#644E63 #645A4E #4E644F #4E5864

square

#644E63 #645A4E #4E644F #4E5864

split-complementary

#644E63 #58644E #4E645A

monochromatic

#1F181F #423341 #644E63 #866985 #A389A2

Accessibility & contrast

On white

7.47

#644E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#644E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E63

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E63	#FFFFFF	#000000	##FFFFFF
##644E63	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5364

Deuteranopia (green-blind)

#525662

Tritanopia (blue-blind)

#665055

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #644e63;
/* rgb */ color: rgb(100, 78, 99);
/* oklch */ color: oklch(45.4% 0.044 327.7);

Tailwind

colors: {
  custom: {
    50: '#907f8f',
    500: '#644e63',
    950: '#000000',
  },
}

SCSS

$custom: #644e63;
$custom-light: #907f8f;
$custom-dark: #000000;

JSON

{
  "hex": "#644e63",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 99
  },
  "hsl": {
    "h": 302.727,
    "s": 12.36,
    "l": 34.902
  },
  "oklch": {
    "l": 0.45427,
    "c": 0.04363,
    "h": 327.7
  },
  "luminance": 0.09059
}

Semantic roles & 50–950 ramp

primary

#644E63

secondary

#7D917D

accent

#B57673

background

#F8F7F8

surface

#F0EEF0

border

#CBC9CB

text

#0C0A0C

muted

#7D7C7D

Preview Lab

Preview with #644E63

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

Preview Lab → · Contrast checker → · Palette generator →