#646D72#646D72

#646D72 is a mid, near-neutral grey. Relative luminance 0.149; OKLCH L 52.9% C 0.014 H 231.8°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#646D72
RGB	rgb(100, 109, 114)
HSL	hsl(201, 7%, 42%)
HSV	hsv(201, 12%, 45%)
CMYK	cmyk(12.3%, 4.4%, 0%, 55.3%)
CIE-LAB	lab(45.44, -2.30, -3.95)
CIE-LCH	lch(45.44, 4.57, 239.81°)
OKLab	oklab(52.88% -0.0083 -0.0106)
OKLCH	oklch(52.88% 0.014 231.8)
XYZ	xyz(13.7607, 14.8613, 18.0599)
Luminance	0.1486 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D72 #726964

analogous

#647270 #646D72 #646672

triadic

#646D72 #72646D #6D7264

tetradic

#646D72 #706472 #726964 #667264

square

#646D72 #706472 #726964 #667264

split-complementary

#646D72 #726466 #727064

monochromatic

#2B2F31 #474E51 #646D72 #828C91 #A3AAAE

Accessibility & contrast

On white

5.29

#646D72 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#646D72 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D72

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D72	#FFFFFF	#000000	##FFFFFF
##646D72	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6D72

Deuteranopia (green-blind)

#696B72

Tritanopia (blue-blind)

#606E6F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #646d72;
/* rgb */ color: rgb(100, 109, 114);
/* oklch */ color: oklch(52.9% 0.014 231.8);

Tailwind

colors: {
  custom: {
    50: '#90969a',
    500: '#646d72',
    950: '#000000',
  },
}

SCSS

$custom: #646d72;
$custom-light: #90969a;
$custom-dark: #000000;

JSON

{
  "hex": "#646d72",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 114
  },
  "hsl": {
    "h": 201.429,
    "s": 6.542,
    "l": 41.961
  },
  "oklch": {
    "l": 0.52879,
    "c": 0.01352,
    "h": 231.8
  },
  "luminance": 0.14862
}

Semantic roles & 50–950 ramp

primary

#646D72

secondary

#9E9894

accent

#8C78B0

background

#F8F9F9

surface

#F0F2F2

border

#CBCCCC

text

#0C0D0E

muted

#7D7E7E

Preview Lab

Preview with #646D72

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

Preview Lab → · Contrast checker → · Palette generator →