#666F6D#666F6D

#666F6D is a mid, near-neutral grey. Relative luminance 0.153; OKLCH L 53.3% C 0.011 H 181.1°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX#666F6D
RGBrgb(102, 111, 109)
HSLhsl(167, 4%, 42%)
HSVhsv(167, 8%, 44%)
CMYKcmyk(8.1%, 0%, 1.8%, 56.5%)
CIE-LABlab(46.04, -3.83, -0.06)
CIE-LCHlch(46.04, 3.83, 180.89°)
OKLaboklab(53.34% -0.0114 -0.0002)
OKLCHoklch(53.34% 0.011 181.1)
XYZxyz(13.9237, 15.2976, 16.6842)
Luminance0.1530 (WCAG relative)
Temperatureneutral
Familygrey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#666F6D #6F6668
analogous
#666F69 #666F6D #666D6F
triadic
#666F6D #6D666F #6F6D66
tetradic
#666F6D #69666F #6F6668 #6D6F66
square
#666F6D #69666F #6F6668 #6D6F66
split-complementary
#666F6D #6F666D #6F6966
monochromatic
#2B2F2E #494F4E #666F6D #848E8C #A4ABAA

Accessibility & contrast

On white

5.17
#666F6D on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.06
#666F6D on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666F6D
5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##666F6D#FFFFFF#000000##FFFFFF
##666F6D1.005.174.065.17
#FFFFFF5.171.0021.001.00
#0000004.0621.001.0021.00
##FFFFFF5.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#6E6E6D
Deuteranopia (green-blind)
#6C6C6D
Tritanopia (blue-blind)
#646F6E
Achromatopsia (no color)
#6D6D6D

Design tokens & code

CSS
--color: #666f6d;
/* rgb */ color: rgb(102, 111, 109);
/* oklch */ color: oklch(53.3% 0.011 181.1);
Tailwind
colors: {
  custom: {
    50: '#919896',
    500: '#666f6d',
    950: '#000000',
  },
}
SCSS
$custom: #666f6d;
$custom-light: #919896;
$custom-dark: #000000;
JSON
{
  "hex": "#666f6d",
  "rgb": {
    "r": 102,
    "g": 111,
    "b": 109
  },
  "hsl": {
    "h": 166.667,
    "s": 4.225,
    "l": 41.765
  },
  "oklch": {
    "l": 0.53338,
    "c": 0.01136,
    "h": 181.1
  },
  "luminance": 0.15298
}

Semantic roles & 50–950 ramp

primary
#666F6D
secondary
#9B9597
accent
#7A86AD
background
#F8F9F9
surface
#F0F2F2
border
#CBCCCC
text
#0C0D0D
muted
#7D7E7E

Preview Lab

Preview with #666F6D

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

Preview Lab → · Contrast checker → · Palette generator →

#666F6D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva