#666E68#666E68

#666E68 is a mid, near-neutral grey. Relative luminance 0.150; OKLCH L 52.9% C 0.013 H 153.5°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#666E68
RGB	rgb(102, 110, 104)
HSL	hsl(135, 4%, 42%)
HSV	hsv(135, 7%, 43%)
CMYK	cmyk(7.3%, 0%, 5.5%, 56.9%)
CIE-LAB	lab(45.60, -4.30, 2.30)
CIE-LCH	lch(45.60, 4.88, 151.89°)
OKLab	oklab(52.95% -0.012 0.006)
OKLCH	oklch(52.95% 0.013 153.5)
XYZ	xyz(13.5536, 14.9760, 15.2706)
Luminance	0.1498 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666E68 #6E666C

analogous

#686E66 #666E68 #666E6C

triadic

#666E68 #68666E #6E6866

tetradic

#666E68 #66686E #6E666C #6E6C66

square

#666E68 #66686E #6E666C #6E6C66

split-complementary

#666E68 #6C666E #6E6668

monochromatic

#2B2E2C #494E4A #666E68 #848D86 #A4ABA6

Accessibility & contrast

On white

5.26

#666E68 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#666E68 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666E68

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666E68	#FFFFFF	#000000	##FFFFFF
##666E68	1.00	5.26	4.00	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6D68

Deuteranopia (green-blind)

#6D6C68

Tritanopia (blue-blind)

#656E6C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #666e68;
/* rgb */ color: rgb(102, 110, 104);
/* oklch */ color: oklch(52.9% 0.013 153.5);

Tailwind

colors: {
  custom: {
    50: '#919793',
    500: '#666e68',
    950: '#000000',
  },
}

SCSS

$custom: #666e68;
$custom-light: #919793;
$custom-dark: #000000;

JSON

{
  "hex": "#666e68",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 104
  },
  "hsl": {
    "h": 135,
    "s": 3.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.52945,
    "c": 0.01343,
    "h": 153.5
  },
  "luminance": 0.14976
}

Semantic roles & 50–950 ramp

primary

#666E68

secondary

#9B9599

accent

#7BA0AD

background

#F8F9F9

surface

#F0F2F1

border

#CBCCCB

text

#0C0D0D

muted

#7D7E7E

Preview Lab

Preview with #666E68

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

Preview Lab → · Contrast checker → · Palette generator →