#030A3B#030A3B

#030A3B is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.4% C 0.094 H 266.6°. Best body text is #FFFFFF at 18.91:1 contrast (WCAG AA passes).

Color values

HEX#030A3B
RGBrgb(3, 10, 59)
HSLhsl(233, 90%, 12%)
HSVhsv(233, 95%, 23%)
CMYKcmyk(94.9%, 83.1%, 0%, 76.9%)
CIE-LABlab(4.99, 16.68, -31.36)
CIE-LCHlch(4.99, 35.52, 298.01°)
OKLaboklab(18.44% -0.0055 -0.0934)
OKLCHoklch(18.44% 0.094 266.6)
XYZxyz(0.9352, 0.5521, 4.1941)
Luminance0.0055 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#030A3B #3B3403
analogous
#03263B #030A3B #18033B
triadic
#030A3B #3B030A #0A3B03
tetradic
#030A3B #3B0326 #3B3403 #033B18
square
#030A3B #3B0326 #3B3403 #033B18
split-complementary
#030A3B #3B1803 #263B03
monochromatic
#01051D #01051D #030A3B #061475 #091EAF

Accessibility & contrast

On white

18.91
#030A3B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.11
#030A3B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030A3B
18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##030A3B#FFFFFF#000000##FFFFFF
##030A3B1.0018.911.1118.91
#FFFFFF18.911.0021.001.00
#0000001.1121.001.0021.00
##FFFFFF18.911.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00143C
Deuteranopia (green-blind)
#000E3A
Tritanopia (blue-blind)
#001821
Achromatopsia (no color)
#111111

Design tokens & code

CSS
--color: #030a3b;
/* rgb */ color: rgb(3, 10, 59);
/* oklch */ color: oklch(18.4% 0.094 266.6);
Tailwind
colors: {
  custom: {
    50: '#4f4a71',
    500: '#030a3b',
    950: '#000000',
  },
}
SCSS
$custom: #030a3b;
$custom-light: #4f4a71;
$custom-dark: #000000;
JSON
{
  "hex": "#030a3b",
  "rgb": {
    "r": 3,
    "g": 10,
    "b": 59
  },
  "hsl": {
    "h": 232.5,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.18435,
    "c": 0.09352,
    "h": 266.6
  },
  "luminance": 0.00552
}

Semantic roles & 50–950 ramp

primary
#030A3B
secondary
#7E711C
accent
#E429FF
background
#F4F4F6
surface
#E7E7EC
border
#C3C3C7
text
#020108
muted
#78777B

Preview Lab

Preview with #030A3B

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

Preview Lab → · Contrast checker → · Palette generator →

#030A3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva