#66646C#66646C

#66646C is a mid, near-neutral grey. Relative luminance 0.130; OKLCH L 50.8% C 0.013 H 297.4°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#66646C
RGB	rgb(102, 100, 108)
HSL	hsl(255, 4%, 41%)
HSV	hsv(255, 7%, 42%)
CMYK	cmyk(5.6%, 7.4%, 0%, 57.6%)
CIE-LAB	lab(42.80, 2.47, -4.23)
CIE-LCH	lch(42.80, 4.90, 300.35°)
OKLab	oklab(50.78% 0.0059 -0.0113)
OKLCH	oklch(50.78% 0.013 297.4)
XYZ	xyz(12.7429, 13.0218, 16.0266)
Luminance	0.1302 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66646C #6A6C64

analogous

#64666C #66646C #6A646C

triadic

#66646C #6C6664 #646C66

tetradic

#66646C #6C6466 #6A6C64 #646C6A

square

#66646C #6C6466 #6A6C64 #646C6A

split-complementary

#66646C #6C6A64 #666C64

monochromatic

#2A292C #48474C #66646C #84828B #A3A2A9

Accessibility & contrast

On white

5.83

#66646C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#66646C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66646C

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66646C	#FFFFFF	#000000	##FFFFFF
##66646C	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63656C

Deuteranopia (green-blind)

#63656C

Tritanopia (blue-blind)

#656567

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #66646c;
/* rgb */ color: rgb(102, 100, 108);
/* oklch */ color: oklch(50.8% 0.013 297.4);

Tailwind

colors: {
  custom: {
    50: '#919096',
    500: '#66646c',
    950: '#000000',
  },
}

SCSS

$custom: #66646c;
$custom-light: #919096;
$custom-dark: #000000;

JSON

{
  "hex": "#66646c",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 108
  },
  "hsl": {
    "h": 255,
    "s": 3.846,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50778,
    "c": 0.01272,
    "h": 297.4
  },
  "luminance": 0.13022
}

Semantic roles & 50–950 ramp

primary

#66646C

secondary

#979993

accent

#AD7BA0

background

#F8F8F9

surface

#F0F0F1

border

#CBCBCB

text

#0C0C0D

muted

#7D7D7E

Preview Lab

Preview with #66646C

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

Preview Lab → · Contrast checker → · Palette generator →