#184F81#184F81

#184F81 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.9% C 0.101 H 250.0°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX#184F81
RGBrgb(24, 79, 129)
HSLhsl(209, 69%, 30%)
HSVhsv(209, 81%, 51%)
CMYKcmyk(81.4%, 38.8%, 0%, 49.4%)
CIE-LABlab(32.64, 1.27, -33.17)
CIE-LCHlch(32.64, 33.19, 272.20°)
OKLaboklab(41.89% -0.0345 -0.0946)
OKLCHoklch(41.89% 0.101 250)
XYZxyz(7.1336, 7.3703, 21.8113)
Luminance0.0737 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#184F81 #814A18
analogous
#18817E #184F81 #181B81
triadic
#184F81 #81184F #4F8118
tetradic
#184F81 #7E1881 #814A18 #1B8118
square
#184F81 #7E1881 #814A18 #1B8118
split-complementary
#184F81 #81181B #817E18
monochromatic
#05101A #0E2F4D #184F81 #226FB5 #398EDA

Accessibility & contrast

On white

8.49
#184F81 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.47
#184F81 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #184F81
8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##184F81#FFFFFF#000000##FFFFFF
##184F811.008.492.478.49
#FFFFFF8.491.0021.001.00
#0000002.4721.001.0021.00
##FFFFFF8.491.0021.001.00

Color blindness preview

Protanopia (red-blind)
#375283
Deuteranopia (green-blind)
#274880
Tritanopia (blue-blind)
#005B61
Achromatopsia (no color)
#4D4D4D

Design tokens & code

CSS
--color: #184f81;
/* rgb */ color: rgb(24, 79, 129);
/* oklch */ color: oklch(41.9% 0.101 250.0);
Tailwind
colors: {
  custom: {
    50: '#677fa6',
    500: '#184f81',
    950: '#000000',
  },
}
SCSS
$custom: #184f81;
$custom-light: #677fa6;
$custom-dark: #000000;
JSON
{
  "hex": "#184f81",
  "rgb": {
    "r": 24,
    "g": 79,
    "b": 129
  },
  "hsl": {
    "h": 208.571,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.41892,
    "c": 0.10068,
    "h": 250
  },
  "luminance": 0.07371
}

Semantic roles & 50–950 ramp

primary
#184F81
secondary
#B57840
accent
#903CEB
background
#F6F7FA
surface
#EBEEF4
border
#C6C9CE
text
#070A0F
muted
#7A7C7F

Preview Lab

Preview with #184F81

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

Preview Lab → · Contrast checker → · Palette generator →

#184F81 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva