#1B5489#1B5489

#1B5489 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.7% C 0.105 H 250.3°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX#1B5489
RGBrgb(27, 84, 137)
HSLhsl(209, 67%, 32%)
HSVhsv(209, 80%, 54%)
CMYKcmyk(80.3%, 38.7%, 0%, 46.3%)
CIE-LABlab(34.76, 1.57, -34.71)
CIE-LCHlch(34.76, 34.74, 272.58°)
OKLaboklab(43.73% -0.0354 -0.099)
OKLCHoklch(43.73% 0.105 250.3)
XYZxyz(8.1360, 8.3788, 24.8505)
Luminance0.0838 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5489 #89501B
analogous
#1B8987 #1B5489 #1B1D89
triadic
#1B5489 #891B54 #54891B
tetradic
#1B5489 #871B89 #89501B #1D891B
square
#1B5489 #871B89 #89501B #1D891B
split-complementary
#1B5489 #891B1D #89871B
monochromatic
#071523 #113556 #1B5489 #2573BC #4492DA

Accessibility & contrast

On white

7.85
#1B5489 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.68
#1B5489 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5489
7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5489#FFFFFF#000000##FFFFFF
##1B54891.007.852.687.85
#FFFFFF7.851.0021.001.00
#0000002.6821.001.0021.00
##FFFFFF7.851.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3B578B
Deuteranopia (green-blind)
#2A4D88
Tritanopia (blue-blind)
#006168
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #1b5489;
/* rgb */ color: rgb(27, 84, 137);
/* oklch */ color: oklch(43.7% 0.105 250.3);
Tailwind
colors: {
  custom: {
    50: '#6983ac',
    500: '#1b5489',
    950: '#000000',
  },
}
SCSS
$custom: #1b5489;
$custom-light: #6983ac;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5489",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 137
  },
  "hsl": {
    "h": 208.909,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.43732,
    "c": 0.1051,
    "h": 250.3
  },
  "luminance": 0.0838
}

Semantic roles & 50–950 ramp

primary
#1B5489
secondary
#BC7E44
accent
#913EEA
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #1B5489

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5489 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva