#103366#103366

#103366 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.098 H 258.3°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX#103366
RGBrgb(16, 51, 102)
HSLhsl(216, 73%, 23%)
HSVhsv(216, 84%, 40%)
CMYKcmyk(84.3%, 50%, 0%, 60%)
CIE-LABlab(21.71, 8.33, -33.54)
CIE-LCHlch(21.71, 34.56, 283.95°)
OKLaboklab(32.77% -0.0199 -0.0963)
OKLCHoklch(32.77% 0.098 258.3)
XYZxyz(3.7949, 3.4367, 13.0311)
Luminance0.0344 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#103366 #664310
analogous
#105E66 #103366 #181066
triadic
#103366 #661033 #336610
tetradic
#103366 #66105E #664310 #106618
square
#103366 #66105E #664310 #106618
split-complementary
#103366 #661810 #5E6610
monochromatic
#040D1A #081931 #103366 #184D9B #2168D0

Accessibility & contrast

On white

12.45
#103366 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.69
#103366 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103366
12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##103366#FFFFFF#000000##FFFFFF
##1033661.0012.451.6912.45
#FFFFFF12.451.0021.001.00
#0000001.6921.001.0021.00
##FFFFFF12.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#173868
Deuteranopia (green-blind)
#003065
Tritanopia (blue-blind)
#003F47
Achromatopsia (no color)
#343434

Design tokens & code

CSS
--color: #103366;
/* rgb */ color: rgb(16, 51, 102);
/* oklch */ color: oklch(32.8% 0.098 258.3);
Tailwind
colors: {
  custom: {
    50: '#5e6a92',
    500: '#103366',
    950: '#000000',
  },
}
SCSS
$custom: #103366;
$custom-light: #5e6a92;
$custom-dark: #000000;
JSON
{
  "hex": "#103366",
  "rgb": {
    "r": 16,
    "g": 51,
    "b": 102
  },
  "hsl": {
    "h": 215.581,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.32766,
    "c": 0.09837,
    "h": 258.3
  },
  "luminance": 0.03437
}

Semantic roles & 50–950 ramp

primary
#103366
secondary
#9E7333
accent
#A538F0
background
#F5F6F9
surface
#EAEBF1
border
#C6C6CB
text
#05060D
muted
#797A7E

Preview Lab

Preview with #103366

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

Preview Lab → · Contrast checker → · Palette generator →

#103366 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva