#183674#183674

#183674 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.9% C 0.113 H 262.6°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX#183674
RGBrgb(24, 54, 116)
HSLhsl(220, 66%, 27%)
HSVhsv(220, 79%, 45%)
CMYKcmyk(79.3%, 53.4%, 0%, 54.5%)
CIE-LABlab(23.98, 13.11, -38.88)
CIE-LCHlch(23.98, 41.03, 288.63°)
OKLaboklab(34.91% -0.0145 -0.1119)
OKLCHoklch(34.91% 0.113 262.6)
XYZxyz(4.8471, 4.0929, 17.0542)
Luminance0.0409 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#183674 #745618
analogous
#186474 #183674 #281874
triadic
#183674 #741836 #367418
tetradic
#183674 #741864 #745618 #187428
square
#183674 #741864 #745618 #187428
split-complementary
#183674 #742818 #647418
monochromatic
#050C19 #0E1E41 #183674 #224EA7 #3267D5

Accessibility & contrast

On white

11.55
#183674 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.82
#183674 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183674
11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##183674#FFFFFF#000000##FFFFFF
##1836741.0011.551.8211.55
#FFFFFF11.551.0021.001.00
#0000001.8221.001.0021.00
##FFFFFF11.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0E3D76
Deuteranopia (green-blind)
#003573
Tritanopia (blue-blind)
#00454F
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #183674;
/* rgb */ color: rgb(24, 54, 116);
/* oklch */ color: oklch(34.9% 0.113 262.6);
Tailwind
colors: {
  custom: {
    50: '#646c9c',
    500: '#183674',
    950: '#000000',
  },
}
SCSS
$custom: #183674;
$custom-light: #646c9c;
$custom-dark: #000000;
JSON
{
  "hex": "#183674",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 116
  },
  "hsl": {
    "h": 220.435,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34912,
    "c": 0.11281,
    "h": 262.6
  },
  "luminance": 0.04093
}

Semantic roles & 50–950 ramp

primary
#183674
secondary
#A9863F
accent
#B13FE9
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060E
muted
#7A7A7E

Preview Lab

Preview with #183674

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

Preview Lab → · Contrast checker → · Palette generator →

#183674 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva