#666A72#666A72

#666A72 is a mid, near-neutral grey. Relative luminance 0.143; OKLCH L 52.4% C 0.013 H 264.5°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX#666A72
RGBrgb(102, 106, 114)
HSLhsl(220, 6%, 42%)
HSVhsv(220, 11%, 45%)
CMYKcmyk(10.5%, 7%, 0%, 55.3%)
CIE-LABlab(44.73, 0.21, -4.99)
CIE-LCHlch(44.73, 5.00, 272.43°)
OKLaboklab(52.36% -0.0013 -0.0134)
OKLCHoklch(52.36% 0.013 264.5)
XYZxyz(13.6701, 14.3476, 17.9655)
Luminance0.1435 (WCAG relative)
Temperatureneutral
Familygrey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#666A72 #726E66
analogous
#667072 #666A72 #686672
triadic
#666A72 #72666A #6A7266
tetradic
#666A72 #726670 #726E66 #667268
square
#666A72 #726670 #726E66 #667268
split-complementary
#666A72 #726866 #707266
monochromatic
#2C2E31 #494C52 #666A72 #848891 #A4A8AE

Accessibility & contrast

On white

5.43
#666A72 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.87
#666A72 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A72
5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##666A72#FFFFFF#000000##FFFFFF
##666A721.005.433.875.43
#FFFFFF5.431.0021.001.00
#0000003.8721.001.0021.00
##FFFFFF5.431.0021.001.00

Color blindness preview

Protanopia (red-blind)
#686A72
Deuteranopia (green-blind)
#676972
Tritanopia (blue-blind)
#636C6C
Achromatopsia (no color)
#6A6A6A

Design tokens & code

CSS
--color: #666a72;
/* rgb */ color: rgb(102, 106, 114);
/* oklch */ color: oklch(52.4% 0.013 264.5);
Tailwind
colors: {
  custom: {
    50: '#91949a',
    500: '#666a72',
    950: '#000000',
  },
}
SCSS
$custom: #666a72;
$custom-light: #91949a;
$custom-dark: #000000;
JSON
{
  "hex": "#666a72",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 114
  },
  "hsl": {
    "h": 220,
    "s": 5.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.52356,
    "c": 0.01348,
    "h": 264.5
  },
  "luminance": 0.14348
}

Semantic roles & 50–950 ramp

primary
#666A72
secondary
#9E9B96
accent
#9D79AF
background
#F8F9F9
surface
#F0F1F2
border
#CBCBCC
text
#0C0D0E
muted
#7D7E7E

Preview Lab

Preview with #666A72

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

Preview Lab → · Contrast checker → · Palette generator →

#666A72 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva