#183779#183779

#183779 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.6% C 0.119 H 262.9°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX#183779
RGBrgb(24, 55, 121)
HSLhsl(221, 67%, 28%)
HSVhsv(221, 80%, 47%)
CMYKcmyk(80.2%, 54.5%, 0%, 52.5%)
CIE-LABlab(24.66, 14.47, -40.95)
CIE-LCHlch(24.66, 43.44, 289.46°)
OKLaboklab(35.55% -0.0147 -0.118)
OKLCHoklch(35.55% 0.119 262.9)
XYZxyz(5.1928, 4.3064, 18.6430)
Luminance0.0431 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#183779 #795A18
analogous
#186779 #183779 #291879
triadic
#183779 #791837 #377918
tetradic
#183779 #791867 #795A18 #187929
square
#183779 #791867 #795A18 #187929
split-complementary
#183779 #792918 #677918
monochromatic
#050C1A #0E2046 #183779 #224EAC #3568D7

Accessibility & contrast

On white

11.28
#183779 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.86
#183779 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183779
11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##183779#FFFFFF#000000##FFFFFF
##1837791.0011.281.8611.28
#FFFFFF11.281.0021.001.00
#0000001.8621.001.0021.00
##FFFFFF11.281.0021.001.00

Color blindness preview

Protanopia (red-blind)
#083F7B
Deuteranopia (green-blind)
#003678
Tritanopia (blue-blind)
#004752
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #183779;
/* rgb */ color: rgb(24, 55, 121);
/* oklch */ color: oklch(35.6% 0.119 262.9);
Tailwind
colors: {
  custom: {
    50: '#656da0',
    500: '#183779',
    950: '#000000',
  },
}
SCSS
$custom: #183779;
$custom-light: #656da0;
$custom-dark: #000000;
JSON
{
  "hex": "#183779",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 121
  },
  "hsl": {
    "h": 220.825,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35554,
    "c": 0.11887,
    "h": 262.9
  },
  "luminance": 0.04307
}

Semantic roles & 50–950 ramp

primary
#183779
secondary
#AE8A3F
accent
#B33EEA
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06070F
muted
#7A7A7E

Preview Lab

Preview with #183779

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

Preview Lab → · Contrast checker → · Palette generator →

#183779 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva