#1B4A88#1B4A88

#1B4A88 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.2% C 0.115 H 256.7°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX#1B4A88
RGBrgb(27, 74, 136)
HSLhsl(214, 67%, 32%)
HSVhsv(214, 80%, 53%)
CMYKcmyk(80.1%, 45.6%, 0%, 46.7%)
CIE-LABlab(31.59, 7.80, -39.14)
CIE-LCHlch(31.59, 39.91, 281.27°)
OKLaboklab(41.25% -0.0264 -0.1122)
OKLCHoklch(41.25% 0.115 256.7)
XYZxyz(7.3431, 6.9073, 24.2340)
Luminance0.0691 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4A88 #88591B
analogous
#1B8188 #1B4A88 #221B88
triadic
#1B4A88 #881B4A #4A881B
tetradic
#1B4A88 #881B81 #88591B #1B8822
square
#1B4A88 #881B81 #88591B #1B8822
split-complementary
#1B4A88 #88221B #81881B
monochromatic
#071222 #112E55 #1B4A88 #2566BB #4484DA

Accessibility & contrast

On white

8.82
#1B4A88 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.38
#1B4A88 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A88
8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4A88#FFFFFF#000000##FFFFFF
##1B4A881.008.822.388.82
#FFFFFF8.821.0021.001.00
#0000002.3821.001.0021.00
##FFFFFF8.821.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2A508A
Deuteranopia (green-blind)
#144687
Tritanopia (blue-blind)
#005962
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #1b4a88;
/* rgb */ color: rgb(27, 74, 136);
/* oklch */ color: oklch(41.2% 0.115 256.7);
Tailwind
colors: {
  custom: {
    50: '#697cab',
    500: '#1b4a88',
    950: '#000000',
  },
}
SCSS
$custom: #1b4a88;
$custom-light: #697cab;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4a88",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 136
  },
  "hsl": {
    "h": 214.128,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41246,
    "c": 0.11527,
    "h": 256.7
  },
  "luminance": 0.06908
}

Semantic roles & 50–950 ramp

primary
#1B4A88
secondary
#BB8844
accent
#A03EEA
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#070910
muted
#7A7B7F

Preview Lab

Preview with #1B4A88

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4A88 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva