#0B304A#0B304A

#0B304A is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 29.8% C 0.062 H 243.8°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX#0B304A
RGBrgb(11, 48, 74)
HSLhsl(205, 74%, 17%)
HSVhsv(205, 85%, 29%)
CMYKcmyk(85.1%, 35.1%, 0%, 71%)
CIE-LABlab(18.71, -2.31, -19.76)
CIE-LCHlch(18.71, 19.90, 263.34°)
OKLaboklab(29.78% -0.0276 -0.056)
OKLCHoklch(29.78% 0.062 243.8)
XYZxyz(2.4305, 2.6792, 6.8663)
Luminance0.0268 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0B304A #4A250B
analogous
#0B4A45 #0B304A #0B114A
triadic
#0B304A #4A0B30 #304A0B
tetradic
#0B304A #450B4A #4A250B #114A0B
square
#0B304A #450B4A #4A250B #114A0B
split-complementary
#0B304A #4A0B11 #4A450B
monochromatic
#04111B #04111B #0B304A #13537F #1B75B5

Accessibility & contrast

On white

13.67
#0B304A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.54
#0B304A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B304A
13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0B304A#FFFFFF#000000##FFFFFF
##0B304A1.0013.671.5413.67
#FFFFFF13.671.0021.001.00
#0000001.5421.001.0021.00
##FFFFFF13.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#24314B
Deuteranopia (green-blind)
#1B2B4A
Tritanopia (blue-blind)
#003639
Achromatopsia (no color)
#2E2E2E

Design tokens & code

CSS
--color: #0b304a;
/* rgb */ color: rgb(11, 48, 74);
/* oklch */ color: oklch(29.8% 0.062 243.8);
Tailwind
colors: {
  custom: {
    50: '#55687c',
    500: '#0b304a',
    950: '#000000',
  },
}
SCSS
$custom: #0b304a;
$custom-light: #55687c;
$custom-dark: #000000;
JSON
{
  "hex": "#0b304a",
  "rgb": {
    "r": 11,
    "g": 48,
    "b": 74
  },
  "hsl": {
    "h": 204.762,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.29783,
    "c": 0.06246,
    "h": 243.8
  },
  "luminance": 0.02679
}

Semantic roles & 50–950 ramp

primary
#0B304A
secondary
#86502B
accent
#8437F1
background
#F5F6F7
surface
#E9EBEE
border
#C5C6C9
text
#030609
muted
#787A7B

Preview Lab

Preview with #0B304A

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

Preview Lab → · Contrast checker → · Palette generator →

#0B304A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva