#18507C#18507C

#18507C is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.8% C 0.093 H 246.6°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX#18507C
RGBrgb(24, 80, 124)
HSLhsl(206, 68%, 29%)
HSVhsv(206, 81%, 49%)
CMYKcmyk(80.6%, 35.5%, 0%, 51.4%)
CIE-LABlab(32.67, -1.38, -30.02)
CIE-LCHlch(32.67, 30.05, 267.36°)
OKLaboklab(41.83% -0.0369 -0.0853)
OKLCHoklch(41.83% 0.093 246.6)
XYZxyz(6.8820, 7.3859, 20.1278)
Luminance0.0739 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18507C #7C4418
analogous
#187C76 #18507C #181E7C
triadic
#18507C #7C1850 #507C18
tetradic
#18507C #76187C #7C4418 #1E7C18
square
#18507C #76187C #7C4418 #1E7C18
split-complementary
#18507C #7C181E #7C7618
monochromatic
#05111A #0E2F49 #18507C #2271AF #3691D8

Accessibility & contrast

On white

8.48
#18507C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.48
#18507C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18507C
8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18507C#FFFFFF#000000##FFFFFF
##18507C1.008.482.488.48
#FFFFFF8.481.0021.001.00
#0000002.4821.001.0021.00
##FFFFFF8.481.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3C527E
Deuteranopia (green-blind)
#2D497B
Tritanopia (blue-blind)
#005B60
Achromatopsia (no color)
#4D4D4D

Design tokens & code

CSS
--color: #18507c;
/* rgb */ color: rgb(24, 80, 124);
/* oklch */ color: oklch(41.8% 0.093 246.6);
Tailwind
colors: {
  custom: {
    50: '#6580a2',
    500: '#18507c',
    950: '#000000',
  },
}
SCSS
$custom: #18507c;
$custom-light: #6580a2;
$custom-dark: #000000;
JSON
{
  "hex": "#18507c",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 124
  },
  "hsl": {
    "h": 206.4,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.41826,
    "c": 0.09299,
    "h": 246.6
  },
  "luminance": 0.07387
}

Semantic roles & 50–950 ramp

primary
#18507C
secondary
#B1713F
accent
#8A3DEA
background
#F6F7FA
surface
#EBEEF3
border
#C6C9CD
text
#060A0F
muted
#7A7C7F

Preview Lab

Preview with #18507C

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

Preview Lab → · Contrast checker → · Palette generator →

#18507C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva