#03103B#03103B

#03103B is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.7% C 0.085 H 264.4°. Best body text is #FFFFFF at 18.40:1 contrast (WCAG AA passes).

Color values

HEX#03103B
RGBrgb(3, 16, 59)
HSLhsl(226, 90%, 12%)
HSVhsv(226, 95%, 23%)
CMYKcmyk(94.9%, 72.9%, 0%, 76.9%)
CIE-LABlab(6.37, 13.56, -29.11)
CIE-LCHlch(6.37, 32.11, 294.98°)
OKLaboklab(19.71% -0.0083 -0.0849)
OKLCHoklch(19.71% 0.085 264.4)
XYZxyz(1.0120, 0.7056, 4.2197)
Luminance0.0071 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#03103B #3B2E03
analogous
#032C3B #03103B #12033B
triadic
#03103B #3B0310 #103B03
tetradic
#03103B #3B032C #3B2E03 #033B12
square
#03103B #3B032C #3B2E03 #033B12
split-complementary
#03103B #3B1203 #2C3B03
monochromatic
#01081D #01081D #03103B #062075 #0930AF

Accessibility & contrast

On white

18.40
#03103B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.14
#03103B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03103B
18.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##03103B#FFFFFF#000000##FFFFFF
##03103B1.0018.401.1418.40
#FFFFFF18.401.0021.001.00
#0000001.1421.001.0021.00
##FFFFFF18.401.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00173C
Deuteranopia (green-blind)
#00113A
Tritanopia (blue-blind)
#001B23
Achromatopsia (no color)
#141414

Design tokens & code

CSS
--color: #03103b;
/* rgb */ color: rgb(3, 16, 59);
/* oklch */ color: oklch(19.7% 0.085 264.4);
Tailwind
colors: {
  custom: {
    50: '#4f4e71',
    500: '#03103b',
    950: '#000000',
  },
}
SCSS
$custom: #03103b;
$custom-light: #4f4e71;
$custom-dark: #000000;
JSON
{
  "hex": "#03103b",
  "rgb": {
    "r": 3,
    "g": 16,
    "b": 59
  },
  "hsl": {
    "h": 226.071,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.19711,
    "c": 0.08535,
    "h": 264.4
  },
  "luminance": 0.00706
}

Semantic roles & 50–950 ramp

primary
#03103B
secondary
#7E671C
accent
#CD29FF
background
#F4F4F6
surface
#E7E7EC
border
#C3C3C7
text
#020108
muted
#78777B

Preview Lab

Preview with #03103B

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

Preview Lab → · Contrast checker → · Palette generator →

#03103B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva