#1D4B80#1D4B80

#1D4B80 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.0% C 0.102 H 254.1°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX#1D4B80
RGBrgb(29, 75, 128)
HSLhsl(212, 63%, 31%)
HSVhsv(212, 77%, 50%)
CMYKcmyk(77.3%, 41.4%, 0%, 49.8%)
CIE-LABlab(31.47, 4.16, -34.40)
CIE-LCHlch(31.47, 34.65, 276.90°)
OKLaboklab(41% -0.0279 -0.0982)
OKLCHoklch(41% 0.102 254.1)
XYZxyz(6.9176, 6.8511, 21.3757)
Luminance0.0685 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D4B80 #80521D
analogous
#1D7C80 #1D4B80 #201D80
triadic
#1D4B80 #801D4B #4B801D
tetradic
#1D4B80 #801D7C #80521D #1D8020
square
#1D4B80 #801D7C #80521D #1D8020
split-complementary
#1D4B80 #80201D #7C801D
monochromatic
#06111C #122E4E #1D4B80 #2868B2 #4387D4

Accessibility & contrast

On white

8.86
#1D4B80 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.37
#1D4B80 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B80
8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D4B80#FFFFFF#000000##FFFFFF
##1D4B801.008.862.378.86
#FFFFFF8.861.0021.001.00
#0000002.3721.001.0021.00
##FFFFFF8.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#324F82
Deuteranopia (green-blind)
#22467F
Tritanopia (blue-blind)
#00575F
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #1d4b80;
/* rgb */ color: rgb(29, 75, 128);
/* oklch */ color: oklch(41.0% 0.102 254.1);
Tailwind
colors: {
  custom: {
    50: '#687ca5',
    500: '#1d4b80',
    950: '#000000',
  },
}
SCSS
$custom: #1d4b80;
$custom-light: #687ca5;
$custom-dark: #000000;
JSON
{
  "hex": "#1d4b80",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 128
  },
  "hsl": {
    "h": 212.121,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.41001,
    "c": 0.1021,
    "h": 254.1
  },
  "luminance": 0.06852
}

Semantic roles & 50–950 ramp

primary
#1D4B80
secondary
#B38045
accent
#9A42E6
background
#F6F7FA
surface
#EBEEF4
border
#C6C9CE
text
#07090F
muted
#7A7B7F

Preview Lab

Preview with #1D4B80

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

Preview Lab → · Contrast checker → · Palette generator →

#1D4B80 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva