#18558E#18558E

#18558E is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.2% C 0.112 H 250.9°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX#18558E
RGBrgb(24, 85, 142)
HSLhsl(209, 71%, 33%)
HSVhsv(209, 83%, 56%)
CMYKcmyk(83.1%, 40.1%, 0%, 44.3%)
CIE-LABlab(35.29, 2.58, -36.92)
CIE-LCHlch(35.29, 37.01, 273.99°)
OKLaboklab(44.22% -0.0365 -0.1055)
OKLCHoklch(44.22% 0.112 250.9)
XYZxyz(8.5058, 8.6431, 26.8059)
Luminance0.0864 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18558E #8E5118
analogous
#188E8C #18558E #181A8E
triadic
#18558E #8E1855 #558E18
tetradic
#18558E #8C188E #8E5118 #1A8E18
square
#18558E #8C188E #8E5118 #1A8E18
split-complementary
#18558E #8E181A #8E8C18
monochromatic
#061625 #0F365A #18558E #2174C2 #4193DF

Accessibility & contrast

On white

7.70
#18558E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.73
#18558E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18558E
7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18558E#FFFFFF#000000##FFFFFF
##18558E1.007.702.737.70
#FFFFFF7.701.0021.001.00
#0000002.7321.001.0021.00
##FFFFFF7.701.0021.001.00

Color blindness preview

Protanopia (red-blind)
#395990
Deuteranopia (green-blind)
#274E8D
Tritanopia (blue-blind)
#00636A
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #18558e;
/* rgb */ color: rgb(24, 85, 142);
/* oklch */ color: oklch(44.2% 0.112 250.9);
Tailwind
colors: {
  custom: {
    50: '#6a84af',
    500: '#18558e',
    950: '#000000',
  },
}
SCSS
$custom: #18558e;
$custom-light: #6a84af;
$custom-dark: #000000;
JSON
{
  "hex": "#18558e",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 142
  },
  "hsl": {
    "h": 208.983,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44219,
    "c": 0.11163,
    "h": 250.9
  },
  "luminance": 0.08644
}

Semantic roles & 50–950 ramp

primary
#18558E
secondary
#C07F42
accent
#913AEE
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #18558E

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

Preview Lab → · Contrast checker → · Palette generator →

#18558E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva