#103D8D#103D8D

#103D8D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.3% C 0.142 H 261.0°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX#103D8D
RGBrgb(16, 61, 141)
HSLhsl(218, 80%, 31%)
HSVhsv(218, 89%, 55%)
CMYKcmyk(88.7%, 56.7%, 0%, 44.7%)
CIE-LABlab(27.76, 17.79, -48.43)
CIE-LCHlch(27.76, 51.59, 290.17°)
OKLaboklab(38.34% -0.0221 -0.1399)
OKLCHoklch(38.34% 0.142 261)
XYZxyz(6.6884, 5.3699, 25.8781)
Luminance0.0537 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#103D8D #8D6010
analogous
#107B8D #103D8D #21108D
triadic
#103D8D #8D103D #3D8D10
tetradic
#103D8D #8D107B #8D6010 #108D21
square
#103D8D #8D107B #8D6010 #108D21
split-complementary
#103D8D #8D2110 #7B8D10
monochromatic
#040D1F #0A2556 #103D8D #1655C4 #3072E7

Accessibility & contrast

On white

10.12
#103D8D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.07
#103D8D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D8D
10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##103D8D#FFFFFF#000000##FFFFFF
##103D8D1.0010.122.0710.12
#FFFFFF10.121.0021.001.00
#0000002.0721.001.0021.00
##FFFFFF10.121.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004790
Deuteranopia (green-blind)
#003C8B
Tritanopia (blue-blind)
#00515F
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #103d8d;
/* rgb */ color: rgb(16, 61, 141);
/* oklch */ color: oklch(38.3% 0.142 261.0);
Tailwind
colors: {
  custom: {
    50: '#6871af',
    500: '#103d8d',
    950: '#000000',
  },
}
SCSS
$custom: #103d8d;
$custom-light: #6871af;
$custom-dark: #000000;
JSON
{
  "hex": "#103d8d",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 218.4,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38339,
    "c": 0.14166,
    "h": 261
  },
  "luminance": 0.05371
}

Semantic roles & 50–950 ramp

primary
#103D8D
secondary
#C29037
accent
#AF32F6
background
#F6F6FA
surface
#ECECF5
border
#C7C7CF
text
#070710
muted
#7A7A7F

Preview Lab

Preview with #103D8D

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

Preview Lab → · Contrast checker → · Palette generator →

#103D8D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva