#666A70#666A70

#666A70 is a mid, near-neutral grey. Relative luminance 0.143; OKLCH L 52.3% C 0.011 H 258.3°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#666A70
RGB	rgb(102, 106, 112)
HSL	hsl(216, 5%, 42%)
HSV	hsv(216, 9%, 44%)
CMYK	cmyk(8.9%, 5.4%, 0%, 56.1%)
CIE-LAB	lab(44.66, -0.24, -3.88)
CIE-LCH	lch(44.66, 3.89, 266.53°)
OKLab	oklab(52.29% -0.0021 -0.0104)
OKLCH	oklch(52.29% 0.011 258.3)
XYZ	xyz(13.5575, 14.3026, 17.3725)
Luminance	0.1430 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A70 #706C66

analogous

#666F70 #666A70 #676670

triadic

#666A70 #70666A #6A7066

tetradic

#666A70 #70666F #706C66 #667067

square

#666A70 #70666F #706C66 #667067

split-complementary

#666A70 #706766 #6F7066

monochromatic

#2C2D30 #494C50 #666A70 #84898F #A4A7AC

Accessibility & contrast

On white

5.44

#666A70 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#666A70 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A70

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A70	#FFFFFF	#000000	##FFFFFF
##666A70	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#686A70

Deuteranopia (green-blind)

#676970

Tritanopia (blue-blind)

#646B6C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #666a70;
/* rgb */ color: rgb(102, 106, 112);
/* oklch */ color: oklch(52.3% 0.011 258.3);

Tailwind

colors: {
  custom: {
    50: '#919499',
    500: '#666a70',
    950: '#000000',
  },
}

SCSS

$custom: #666a70;
$custom-light: #919499;
$custom-dark: #000000;

JSON

{
  "hex": "#666a70",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 112
  },
  "hsl": {
    "h": 216,
    "s": 4.673,
    "l": 41.961
  },
  "oklch": {
    "l": 0.52285,
    "c": 0.01063,
    "h": 258.3
  },
  "luminance": 0.14303
}

Semantic roles & 50–950 ramp

primary

#666A70

secondary

#9C9A96

accent

#997AAE

background

#F8F9F9

surface

#F0F1F2

border

#CBCBCC

text

#0C0D0D

muted

#7D7E7E

Preview Lab

Preview with #666A70

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

Preview Lab → · Contrast checker → · Palette generator →