#1B4F77#1B4F77

#1B4F77 is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.4% C 0.086 H 245.5°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX#1B4F77
RGBrgb(27, 79, 119)
HSLhsl(206, 63%, 29%)
HSVhsv(206, 77%, 47%)
CMYKcmyk(77.3%, 33.6%, 0%, 53.3%)
CIE-LABlab(32.16, -2.32, -27.71)
CIE-LCHlch(32.16, 27.80, 265.22°)
OKLaboklab(41.36% -0.0358 -0.0786)
OKLCHoklch(41.36% 0.086 245.5)
XYZxyz(6.5765, 7.1561, 18.4839)
Luminance0.0716 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4F77 #77431B
analogous
#1B7771 #1B4F77 #1B2177
triadic
#1B4F77 #771B4F #4F771B
tetradic
#1B4F77 #711B77 #77431B #21771B
square
#1B4F77 #711B77 #77431B #21771B
split-complementary
#1B4F77 #771B21 #77711B
monochromatic
#061119 #102E45 #1B4F77 #2670A9 #3A90D2

Accessibility & contrast

On white

8.64
#1B4F77 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.43
#1B4F77 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F77
8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4F77#FFFFFF#000000##FFFFFF
##1B4F771.008.642.438.64
#FFFFFF8.641.0021.001.00
#0000002.4321.001.0021.00
##FFFFFF8.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3D5079
Deuteranopia (green-blind)
#304876
Tritanopia (blue-blind)
#00595D
Achromatopsia (no color)
#4C4C4C

Design tokens & code

CSS
--color: #1b4f77;
/* rgb */ color: rgb(27, 79, 119);
/* oklch */ color: oklch(41.4% 0.086 245.5);
Tailwind
colors: {
  custom: {
    50: '#65809e',
    500: '#1b4f77',
    950: '#000000',
  },
}
SCSS
$custom: #1b4f77;
$custom-light: #65809e;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4f77",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 119
  },
  "hsl": {
    "h": 206.087,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.41359,
    "c": 0.08634,
    "h": 245.5
  },
  "luminance": 0.07157
}

Semantic roles & 50–950 ramp

primary
#1B4F77
secondary
#AB7042
accent
#8942E6
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#060A0E
muted
#7A7C7E

Preview Lab

Preview with #1B4F77

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4F77 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva