#556366#556366

#556366 is a mid, near-neutral cyan. Relative luminance 0.118; OKLCH L 48.9% C 0.018 H 212.1°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#556366
RGB	rgb(85, 99, 102)
HSL	hsl(191, 9%, 37%)
HSV	hsv(191, 17%, 40%)
CMYK	cmyk(16.7%, 2.9%, 0%, 60%)
CIE-LAB	lab(40.92, -4.62, -3.50)
CIE-LCH	lch(40.92, 5.80, 217.12°)
OKLab	oklab(48.89% -0.0151 -0.0095)
OKLCH	oklch(48.89% 0.018 212.1)
XYZ	xyz(10.6058, 11.8140, 14.2893)
Luminance	0.1181 (WCAG relative)
Temperature	neutral
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556366 #665855

analogous

#556661 #556366 #555B66

triadic

#556366 #665563 #636655

tetradic

#556366 #615566 #665855 #5B6655

square

#556366 #615566 #665855 #5B6655

split-complementary

#556366 #66555B #666155

monochromatic

#1D2223 #394345 #556366 #718387 #92A1A4

Accessibility & contrast

On white

6.24

#556366 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#556366 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556366

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556366	#FFFFFF	#000000	##FFFFFF
##556366	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#606266

Deuteranopia (green-blind)

#5D5F66

Tritanopia (blue-blind)

#506464

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #556366;
/* rgb */ color: rgb(85, 99, 102);
/* oklch */ color: oklch(48.9% 0.018 212.1);

Tailwind

colors: {
  custom: {
    50: '#858f91',
    500: '#556366',
    950: '#000000',
  },
}

SCSS

$custom: #556366;
$custom-light: #858f91;
$custom-dark: #000000;

JSON

{
  "hex": "#556366",
  "rgb": {
    "r": 85,
    "g": 99,
    "b": 102
  },
  "hsl": {
    "h": 190.588,
    "s": 9.091,
    "l": 36.667
  },
  "oklch": {
    "l": 0.48891,
    "c": 0.01783,
    "h": 212.1
  },
  "luminance": 0.11814
}

Semantic roles & 50–950 ramp

primary

#556366

secondary

#938784

accent

#8076B2

background

#F8F8F8

surface

#EFF0F0

border

#CACBCB

text

#0B0C0C

muted

#7C7D7D

Preview Lab

Preview with #556366

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

Preview Lab → · Contrast checker → · Palette generator →