#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
RGB	rgb(102, 111, 109)
HSL	hsl(167, 4%, 42%)
HSV	hsv(167, 8%, 44%)
CMYK	cmyk(8.1%, 0%, 1.8%, 56.5%)
CIE-LAB	lab(46.04, -3.83, -0.06)
CIE-LCH	lch(46.04, 3.83, 180.89°)
OKLab	oklab(53.34% -0.0114 -0.0002)
OKLCH	oklch(53.34% 0.011 181.1)
XYZ	xyz(13.9237, 15.2976, 16.6842)
Luminance	0.1530 (WCAG relative)
Temperature	neutral
Family	grey

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
##666F6D	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

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 →