#18558C#18558C

#18558C is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.1% C 0.109 H 250.1°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX#18558C
RGBrgb(24, 85, 140)
HSLhsl(208, 71%, 32%)
HSVhsv(208, 83%, 55%)
CMYKcmyk(82.9%, 39.3%, 0%, 45.1%)
CIE-LABlab(35.17, 1.77, -35.89)
CIE-LCHlch(35.17, 35.94, 272.83°)
OKLaboklab(44.09% -0.0371 -0.1024)
OKLCHoklch(44.09% 0.109 250.1)
XYZxyz(8.3570, 8.5836, 26.0222)
Luminance0.0858 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18558C #8C4F18
analogous
#188C89 #18558C #181B8C
triadic
#18558C #8C1855 #558C18
tetradic
#18558C #89188C #8C4F18 #1B8C18
square
#18558C #89188C #8C4F18 #1B8C18
split-complementary
#18558C #8C181B #8C8918
monochromatic
#061624 #0F3558 #18558C #2175C0 #4093DE

Accessibility & contrast

On white

7.73
#18558C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.72
#18558C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18558C
7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18558C#FFFFFF#000000##FFFFFF
##18558C1.007.732.727.73
#FFFFFF7.731.0021.001.00
#0000002.7221.001.0021.00
##FFFFFF7.731.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3B588E
Deuteranopia (green-blind)
#294E8B
Tritanopia (blue-blind)
#006269
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #18558c;
/* rgb */ color: rgb(24, 85, 140);
/* oklch */ color: oklch(44.1% 0.109 250.1);
Tailwind
colors: {
  custom: {
    50: '#6984ae',
    500: '#18558c',
    950: '#000000',
  },
}
SCSS
$custom: #18558c;
$custom-light: #6984ae;
$custom-dark: #000000;
JSON
{
  "hex": "#18558c",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 140
  },
  "hsl": {
    "h": 208.448,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44088,
    "c": 0.10895,
    "h": 250.1
  },
  "luminance": 0.08585
}

Semantic roles & 50–950 ramp

primary
#18558C
secondary
#BF7D41
accent
#8F3AED
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #18558C

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

Preview Lab → · Contrast checker → · Palette generator →

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