#18556D#18556D

#18556D is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.3% C 0.072 H 228.8°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX#18556D
RGBrgb(24, 85, 109)
HSLhsl(197, 64%, 26%)
HSVhsv(197, 78%, 43%)
CMYKcmyk(78%, 22%, 0%, 57.3%)
CIE-LABlab(33.55, -10.33, -19.29)
CIE-LCHlch(33.55, 21.89, 241.83°)
OKLaboklab(42.28% -0.0475 -0.0542)
OKLCHoklch(42.28% 0.072 228.8)
XYZxyz(6.3844, 7.7946, 15.6331)
Luminance0.0780 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18556D #6D3018
analogous
#186D5A #18556D #182A6D
triadic
#18556D #6D1855 #556D18
tetradic
#18556D #5A186D #6D3018 #2A6D18
square
#18556D #5A186D #6D3018 #2A6D18
split-complementary
#18556D #6D182A #6D5A18
monochromatic
#061419 #0D2E3B #18556D #237C9F #2EA3D1

Accessibility & contrast

On white

8.21
#18556D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.56
#18556D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18556D
8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18556D#FFFFFF#000000##FFFFFF
##18556D1.008.212.568.21
#FFFFFF8.211.0021.001.00
#0000002.5621.001.0021.00
##FFFFFF8.211.0021.001.00

Color blindness preview

Protanopia (red-blind)
#48546E
Deuteranopia (green-blind)
#3D4B6D
Tritanopia (blue-blind)
#005C5D
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #18556d;
/* rgb */ color: rgb(24, 85, 109);
/* oklch */ color: oklch(42.3% 0.072 228.8);
Tailwind
colors: {
  custom: {
    50: '#638497',
    500: '#18556d',
    950: '#000000',
  },
}
SCSS
$custom: #18556d;
$custom-light: #638497;
$custom-dark: #000000;
JSON
{
  "hex": "#18556d",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 109
  },
  "hsl": {
    "h": 196.941,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.42277,
    "c": 0.07203,
    "h": 228.8
  },
  "luminance": 0.07795
}

Semantic roles & 50–950 ramp

primary
#18556D
secondary
#A35B3E
accent
#7041E7
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#060B0D
muted
#7A7C7E

Preview Lab

Preview with #18556D

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

Preview Lab → · Contrast checker → · Palette generator →

#18556D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva