#1B5891#1B5891

#1B5891 is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.2% C 0.111 H 250.7°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX#1B5891
RGBrgb(27, 88, 145)
HSLhsl(209, 69%, 34%)
HSVhsv(209, 81%, 57%)
CMYKcmyk(81.4%, 39.3%, 0%, 43.1%)
CIE-LABlab(36.47, 2.15, -36.85)
CIE-LCHlch(36.47, 36.92, 273.34°)
OKLaboklab(45.22% -0.0369 -0.1052)
OKLCHoklch(45.22% 0.111 250.7)
XYZxyz(9.0506, 9.2557, 28.0921)
Luminance0.0926 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5891 #91541B
analogous
#1B918F #1B5891 #1B1D91
triadic
#1B5891 #911B58 #58911B
tetradic
#1B5891 #8F1B91 #91541B #1D911B
square
#1B5891 #8F1B91 #91541B #1D911B
split-complementary
#1B5891 #911B1D #918F1B
monochromatic
#08192A #11395D #1B5891 #2577C5 #4996DD

Accessibility & contrast

On white

7.36
#1B5891 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.85
#1B5891 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5891
7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5891#FFFFFF#000000##FFFFFF
##1B58911.007.362.857.36
#FFFFFF7.361.0021.001.00
#0000002.8521.001.0021.00
##FFFFFF7.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3D5C93
Deuteranopia (green-blind)
#2A5190
Tritanopia (blue-blind)
#00666D
Achromatopsia (no color)
#565656

Design tokens & code

CSS
--color: #1b5891;
/* rgb */ color: rgb(27, 88, 145);
/* oklch */ color: oklch(45.2% 0.111 250.7);
Tailwind
colors: {
  custom: {
    50: '#6b86b1',
    500: '#1b5891',
    950: '#000000',
  },
}
SCSS
$custom: #1b5891;
$custom-light: #6b86b1;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5891",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 145
  },
  "hsl": {
    "h": 208.983,
    "s": 68.605,
    "l": 33.725
  },
  "oklch": {
    "l": 0.45224,
    "c": 0.11148,
    "h": 250.7
  },
  "luminance": 0.09257
}

Semantic roles & 50–950 ramp

primary
#1B5891
secondary
#BF8249
accent
#913CEB
background
#F6F8FA
surface
#ECEFF5
border
#C7CACF
text
#080B11
muted
#7A7C80

Preview Lab

Preview with #1B5891

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5891 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva