#1B5288#1B5288

#1B5288 is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.2% C 0.106 H 251.4°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX#1B5288
RGBrgb(27, 82, 136)
HSLhsl(210, 67%, 32%)
HSVhsv(210, 80%, 53%)
CMYKcmyk(80.1%, 39.7%, 0%, 46.7%)
CIE-LABlab(34.07, 2.47, -35.18)
CIE-LCHlch(34.07, 35.27, 274.02°)
OKLaboklab(43.18% -0.0338 -0.1004)
OKLCHoklch(43.18% 0.106 251.4)
XYZxyz(7.9115, 8.0442, 24.4235)
Luminance0.0804 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5288 #88511B
analogous
#1B8888 #1B5288 #1B1B88
triadic
#1B5288 #881B52 #52881B
tetradic
#1B5288 #881B88 #88511B #1B881B
square
#1B5288 #881B88 #88511B #1B881B
split-complementary
#1B5288 #881B1B #88881B
monochromatic
#071422 #113355 #1B5288 #2571BB #448FDA

Accessibility & contrast

On white

8.05
#1B5288 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.61
#1B5288 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5288
8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5288#FFFFFF#000000##FFFFFF
##1B52881.008.052.618.05
#FFFFFF8.051.0021.001.00
#0000002.6121.001.0021.00
##FFFFFF8.051.0021.001.00

Color blindness preview

Protanopia (red-blind)
#38568A
Deuteranopia (green-blind)
#274C87
Tritanopia (blue-blind)
#005F66
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #1b5288;
/* rgb */ color: rgb(27, 82, 136);
/* oklch */ color: oklch(43.2% 0.106 251.4);
Tailwind
colors: {
  custom: {
    50: '#6982ab',
    500: '#1b5288',
    950: '#000000',
  },
}
SCSS
$custom: #1b5288;
$custom-light: #6982ab;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5288",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 136
  },
  "hsl": {
    "h": 209.725,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.43177,
    "c": 0.10592,
    "h": 251.4
  },
  "luminance": 0.08045
}

Semantic roles & 50–950 ramp

primary
#1B5288
secondary
#BB7F44
accent
#933EEA
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #1B5288

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5288 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva