#666E6A#666E6A

#666E6A is a mid, near-neutral grey. Relative luminance 0.150; OKLCH L 53.0% C 0.012 H 164.6°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#666E6A
RGB	rgb(102, 110, 106)
HSL	hsl(150, 4%, 42%)
HSV	hsv(150, 7%, 43%)
CMYK	cmyk(7.3%, 0%, 3.6%, 56.9%)
CIE-LAB	lab(45.66, -3.89, 1.18)
CIE-LCH	lch(45.66, 4.06, 163.09°)
OKLab	oklab(53.01% -0.0111 0.0031)
OKLCH	oklch(53.01% 0.012 164.6)
XYZ	xyz(13.6564, 15.0171, 15.8120)
Luminance	0.1502 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666E6A #6E666A

analogous

#666E66 #666E6A #666E6E

triadic

#666E6A #6A666E #6E6A66

tetradic

#666E6A #66666E #6E666A #6E6E66

square

#666E6A #66666E #6E666A #6E6E66

split-complementary

#666E6A #6E666E #6E6666

monochromatic

#2B2E2D #494E4B #666E6A #848D89 #A4ABA7

Accessibility & contrast

On white

5.25

#666E6A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#666E6A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666E6A

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666E6A	#FFFFFF	#000000	##FFFFFF
##666E6A	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6D6A

Deuteranopia (green-blind)

#6C6C6A

Tritanopia (blue-blind)

#656E6D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #666e6a;
/* rgb */ color: rgb(102, 110, 106);
/* oklch */ color: oklch(53.0% 0.012 164.6);

Tailwind

colors: {
  custom: {
    50: '#919794',
    500: '#666e6a',
    950: '#000000',
  },
}

SCSS

$custom: #666e6a;
$custom-light: #919794;
$custom-dark: #000000;

JSON

{
  "hex": "#666e6a",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 106
  },
  "hsl": {
    "h": 150,
    "s": 3.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.53008,
    "c": 0.01154,
    "h": 164.6
  },
  "luminance": 0.15017
}

Semantic roles & 50–950 ramp

primary

#666E6A

secondary

#9B9598

accent

#7B94AD

background

#F8F9F9

surface

#F0F2F1

border

#CBCCCB

text

#0C0D0D

muted

#7D7E7E

Preview Lab

Preview with #666E6A

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

Preview Lab → · Contrast checker → · Palette generator →