#666C7A#666C7A

#666C7A is a mid, muted blue. Relative luminance 0.150; OKLCH L 53.1% C 0.023 H 267.1°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#666C7A
RGB	rgb(102, 108, 122)
HSL	hsl(222, 9%, 44%)
HSV	hsv(222, 16%, 48%)
CMYK	cmyk(16.4%, 11.5%, 0%, 52.2%)
CIE-LAB	lab(45.57, 0.87, -8.54)
CIE-LCH	lch(45.57, 8.59, 275.81°)
OKLab	oklab(53.11% -0.0012 -0.0231)
OKLCH	oklch(53.11% 0.023 267.1)
XYZ	xyz(14.3541, 14.9548, 20.5389)
Luminance	0.1495 (WCAG relative)
Temperature	neutral
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666C7A #7A7466

analogous

#66767A #666C7A #6A667A

triadic

#666C7A #7A666C #6C7A66

tetradic

#666C7A #7A6676 #7A7466 #667A6A

square

#666C7A #7A6676 #7A7466 #667A6A

split-complementary

#666C7A #7A6A66 #767A66

monochromatic

#2E3137 #4A4E59 #666C7A #858B99 #A6AAB5

Accessibility & contrast

On white

5.26

#666C7A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#666C7A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666C7A

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666C7A	#FFFFFF	#000000	##FFFFFF
##666C7A	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#686D7B

Deuteranopia (green-blind)

#666B7A

Tritanopia (blue-blind)

#616F70

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #666c7a;
/* rgb */ color: rgb(102, 108, 122);
/* oklch */ color: oklch(53.1% 0.023 267.1);

Tailwind

colors: {
  custom: {
    50: '#9196a0',
    500: '#666c7a',
    950: '#000000',
  },
}

SCSS

$custom: #666c7a;
$custom-light: #9196a0;
$custom-dark: #000000;

JSON

{
  "hex": "#666c7a",
  "rgb": {
    "r": 102,
    "g": 108,
    "b": 122
  },
  "hsl": {
    "h": 222,
    "s": 8.929,
    "l": 43.922
  },
  "oklch": {
    "l": 0.53107,
    "c": 0.02315,
    "h": 267.1
  },
  "luminance": 0.14955
}

Semantic roles & 50–950 ramp

primary

#666C7A

secondary

#A4A098

accent

#A076B2

background

#F8F9F9

surface

#F0F1F2

border

#CBCBCC

text

#0D0D0E

muted

#7D7E7E

Preview Lab

Preview with #666C7A

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

Preview Lab → · Contrast checker → · Palette generator →