#1B4A72#1B4A72

#1B4A72 is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.8% C 0.085 H 247.7°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX#1B4A72
RGBrgb(27, 74, 114)
HSLhsl(208, 62%, 28%)
HSVhsv(208, 76%, 45%)
CMYKcmyk(76.3%, 35.1%, 0%, 55.3%)
CIE-LABlab(30.27, -1.04, -27.56)
CIE-LCHlch(30.27, 27.58, 267.84°)
OKLaboklab(39.78% -0.0321 -0.0782)
OKLCHoklch(39.78% 0.085 247.7)
XYZxyz(5.9369, 6.3448, 16.8281)
Luminance0.0635 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4A72 #72431B
analogous
#1B726E #1B4A72 #1B1F72
triadic
#1B4A72 #721B4A #4A721B
tetradic
#1B4A72 #6E1B72 #72431B #1F721B
square
#1B4A72 #6E1B72 #72431B #1F721B
split-complementary
#1B4A72 #721B1F #726E1B
monochromatic
#061019 #0F2A41 #1B4A72 #276AA3 #388AD0

Accessibility & contrast

On white

9.26
#1B4A72 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.27
#1B4A72 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A72
9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4A72#FFFFFF#000000##FFFFFF
##1B4A721.009.262.279.26
#FFFFFF9.261.0021.001.00
#0000002.2721.001.0021.00
##FFFFFF9.261.0021.001.00

Color blindness preview

Protanopia (red-blind)
#384C74
Deuteranopia (green-blind)
#2B4471
Tritanopia (blue-blind)
#005458
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #1b4a72;
/* rgb */ color: rgb(27, 74, 114);
/* oklch */ color: oklch(39.8% 0.085 247.7);
Tailwind
colors: {
  custom: {
    50: '#647c9b',
    500: '#1b4a72',
    950: '#000000',
  },
}
SCSS
$custom: #1b4a72;
$custom-light: #647c9b;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4a72",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 114
  },
  "hsl": {
    "h": 207.586,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.39778,
    "c": 0.08457,
    "h": 247.7
  },
  "luminance": 0.06345
}

Semantic roles & 50–950 ramp

primary
#1B4A72
secondary
#A77042
accent
#8D43E5
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#06090E
muted
#7A7B7E

Preview Lab

Preview with #1B4A72

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4A72 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva