#1D4C79#1D4C79

#1D4C79 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.8% C 0.091 H 250.3°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX#1D4C79
RGBrgb(29, 76, 121)
HSLhsl(209, 61%, 29%)
HSVhsv(209, 76%, 47%)
CMYKcmyk(76%, 37.2%, 0%, 52.5%)
CIE-LABlab(31.37, 0.72, -30.20)
CIE-LCHlch(31.37, 30.21, 271.36°)
OKLaboklab(40.79% -0.0308 -0.0859)
OKLCHoklch(40.79% 0.091 250.3)
XYZxyz(6.5410, 6.8098, 19.0552)
Luminance0.0681 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D4C79 #794A1D
analogous
#1D7978 #1D4C79 #1D1E79
triadic
#1D4C79 #791D4C #4C791D
tetradic
#1D4C79 #781D79 #794A1D #1E791D
square
#1D4C79 #781D79 #794A1D #1E791D
split-complementary
#1D4C79 #791D1E #79781D
monochromatic
#061019 #112D48 #1D4C79 #296BAA #3F8AD1

Accessibility & contrast

On white

8.89
#1D4C79 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.36
#1D4C79 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C79
8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D4C79#FFFFFF#000000##FFFFFF
##1D4C791.008.892.368.89
#FFFFFF8.891.0021.001.00
#0000002.3621.001.0021.00
##FFFFFF8.891.0021.001.00

Color blindness preview

Protanopia (red-blind)
#374F7B
Deuteranopia (green-blind)
#2A4678
Tritanopia (blue-blind)
#00575C
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #1d4c79;
/* rgb */ color: rgb(29, 76, 121);
/* oklch */ color: oklch(40.8% 0.091 250.3);
Tailwind
colors: {
  custom: {
    50: '#667da0',
    500: '#1d4c79',
    950: '#000000',
  },
}
SCSS
$custom: #1d4c79;
$custom-light: #667da0;
$custom-dark: #000000;
JSON
{
  "hex": "#1d4c79",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 121
  },
  "hsl": {
    "h": 209.348,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40792,
    "c": 0.09122,
    "h": 250.3
  },
  "luminance": 0.06811
}

Semantic roles & 50–950 ramp

primary
#1D4C79
secondary
#AD7845
accent
#9243E4
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#07090E
muted
#7A7B7E

Preview Lab

Preview with #1D4C79

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

Preview Lab → · Contrast checker → · Palette generator →

#1D4C79 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva