#1B4B88#1B4B88

#1B4B88 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.5% C 0.114 H 256.1°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX#1B4B88
RGBrgb(27, 75, 136)
HSLhsl(214, 67%, 32%)
HSVhsv(214, 80%, 53%)
CMYKcmyk(80.1%, 44.9%, 0%, 46.7%)
CIE-LABlab(31.90, 7.13, -38.65)
CIE-LCHlch(31.90, 39.30, 280.45°)
OKLaboklab(41.48% -0.0273 -0.1107)
OKLCHoklch(41.48% 0.114 256.1)
XYZxyz(7.4104, 7.0419, 24.2564)
Luminance0.0704 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4B88 #88581B
analogous
#1B8288 #1B4B88 #221B88
triadic
#1B4B88 #881B4B #4B881B
tetradic
#1B4B88 #881B82 #88581B #1B8822
square
#1B4B88 #881B82 #88581B #1B8822
split-complementary
#1B4B88 #88221B #82881B
monochromatic
#071322 #112F55 #1B4B88 #2567BB #4486DA

Accessibility & contrast

On white

8.72
#1B4B88 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.41
#1B4B88 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B88
8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4B88#FFFFFF#000000##FFFFFF
##1B4B881.008.722.418.72
#FFFFFF8.721.0021.001.00
#0000002.4121.001.0021.00
##FFFFFF8.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2C508A
Deuteranopia (green-blind)
#174687
Tritanopia (blue-blind)
#005963
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #1b4b88;
/* rgb */ color: rgb(27, 75, 136);
/* oklch */ color: oklch(41.5% 0.114 256.1);
Tailwind
colors: {
  custom: {
    50: '#697cab',
    500: '#1b4b88',
    950: '#000000',
  },
}
SCSS
$custom: #1b4b88;
$custom-light: #697cab;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4b88",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 136
  },
  "hsl": {
    "h": 213.578,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41484,
    "c": 0.11406,
    "h": 256.1
  },
  "luminance": 0.07043
}

Semantic roles & 50–950 ramp

primary
#1B4B88
secondary
#BB8744
accent
#9E3EEA
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070910
muted
#7A7B7F

Preview Lab

Preview with #1B4B88

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4B88 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva