#186C81#186C81

#186C81 is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.3% C 0.082 H 219.2°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX#186C81
RGBrgb(24, 108, 129)
HSLhsl(192, 69%, 30%)
HSVhsv(192, 81%, 51%)
CMYKcmyk(81.4%, 16.3%, 0%, 49.4%)
CIE-LABlab(42.00, -16.36, -18.52)
CIE-LCHlch(42.00, 24.72, 228.55°)
OKLaboklab(49.34% -0.0635 -0.0518)
OKLCHoklch(49.34% 0.082 219.2)
XYZxyz(9.7000, 12.5031, 22.6667)
Luminance0.1250 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#186C81 #812D18
analogous
#188161 #186C81 #183881
triadic
#186C81 #81186C #6C8118
tetradic
#186C81 #611881 #812D18 #388118
square
#186C81 #611881 #812D18 #388118
split-complementary
#186C81 #811838 #816118
monochromatic
#05161A #0E414D #186C81 #2297B5 #39BADA

Accessibility & contrast

On white

6.00
#186C81 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.50
#186C81 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #186C81
6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##186C81#FFFFFF#000000##FFFFFF
##186C811.006.003.506.00
#FFFFFF6.001.0021.001.00
#0000003.5021.001.0021.00
##FFFFFF6.001.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5F6982
Deuteranopia (green-blind)
#515F81
Tritanopia (blue-blind)
#007373
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #186c81;
/* rgb */ color: rgb(24, 108, 129);
/* oklch */ color: oklch(49.3% 0.082 219.2);
Tailwind
colors: {
  custom: {
    50: '#6896a5',
    500: '#186c81',
    950: '#000000',
  },
}
SCSS
$custom: #186c81;
$custom-light: #6896a5;
$custom-dark: #000000;
JSON
{
  "hex": "#186c81",
  "rgb": {
    "r": 24,
    "g": 108,
    "b": 129
  },
  "hsl": {
    "h": 192,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.49342,
    "c": 0.08195,
    "h": 219.2
  },
  "luminance": 0.12504
}

Semantic roles & 50–950 ramp

primary
#186C81
secondary
#B55740
accent
#5F3CEB
background
#F6F9FA
surface
#ECF2F4
border
#C7CCCE
text
#070D0F
muted
#7A7E7F

Preview Lab

Preview with #186C81

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

Preview Lab → · Contrast checker → · Palette generator →

#186C81 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva