#1B548A#1B548A

#1B548A is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.8% C 0.106 H 250.7°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX#1B548A
RGBrgb(27, 84, 138)
HSLhsl(209, 67%, 32%)
HSVhsv(209, 80%, 54%)
CMYKcmyk(80.4%, 39.1%, 0%, 45.9%)
CIE-LABlab(34.82, 1.96, -35.23)
CIE-LCHlch(34.82, 35.28, 273.19°)
OKLaboklab(43.8% -0.0351 -0.1005)
OKLCHoklch(43.8% 0.106 250.7)
XYZxyz(8.2080, 8.4077, 25.2301)
Luminance0.0841 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B548A #8A511B
analogous
#1B8A89 #1B548A #1B1D8A
triadic
#1B548A #8A1B54 #548A1B
tetradic
#1B548A #891B8A #8A511B #1D8A1B
square
#1B548A #891B8A #8A511B #1D8A1B
split-complementary
#1B548A #8A1B1D #8A891B
monochromatic
#071624 #113557 #1B548A #2573BD #4592DB

Accessibility & contrast

On white

7.83
#1B548A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.68
#1B548A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B548A
7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B548A#FFFFFF#000000##FFFFFF
##1B548A1.007.832.687.83
#FFFFFF7.831.0021.001.00
#0000002.6821.001.0021.00
##FFFFFF7.831.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3A578C
Deuteranopia (green-blind)
#294D89
Tritanopia (blue-blind)
#006168
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #1b548a;
/* rgb */ color: rgb(27, 84, 138);
/* oklch */ color: oklch(43.8% 0.106 250.7);
Tailwind
colors: {
  custom: {
    50: '#6a83ac',
    500: '#1b548a',
    950: '#000000',
  },
}
SCSS
$custom: #1b548a;
$custom-light: #6a83ac;
$custom-dark: #000000;
JSON
{
  "hex": "#1b548a",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 138
  },
  "hsl": {
    "h": 209.189,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43796,
    "c": 0.10644,
    "h": 250.7
  },
  "luminance": 0.08409
}

Semantic roles & 50–950 ramp

primary
#1B548A
secondary
#BC7F45
accent
#923EEA
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #1B548A

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

Preview Lab → · Contrast checker → · Palette generator →

#1B548A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva