#1D3690#1D3690

#1D3690 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.6% C 0.152 H 266.7°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX#1D3690
RGBrgb(29, 54, 144)
HSLhsl(227, 66%, 34%)
HSVhsv(227, 80%, 56%)
CMYKcmyk(79.9%, 62.5%, 0%, 43.5%)
CIE-LABlab(26.48, 25.04, -52.35)
CIE-LCHlch(26.48, 58.03, 295.56°)
OKLaboklab(37.58% -0.0086 -0.1514)
OKLCHoklch(37.58% 0.152 266.7)
XYZxyz(6.8581, 4.9124, 26.9669)
Luminance0.0491 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D3690 #90771D
analogous
#1D7090 #1D3690 #3E1D90
triadic
#1D3690 #901D36 #36901D
tetradic
#1D3690 #901D70 #90771D #1D903E
square
#1D3690 #901D70 #90771D #1D903E
split-complementary
#1D3690 #903E1D #70901D
monochromatic
#08102A #13235D #1D3690 #2749C3 #4C6BDB

Accessibility & contrast

On white

10.59
#1D3690 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.98
#1D3690 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3690
10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D3690#FFFFFF#000000##FFFFFF
##1D36901.0010.591.9810.59
#FFFFFF10.591.0021.001.00
#0000001.9821.001.0021.00
##FFFFFF10.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004493
Deuteranopia (green-blind)
#00398E
Tritanopia (blue-blind)
#004D5D
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #1d3690;
/* rgb */ color: rgb(29, 54, 144);
/* oklch */ color: oklch(37.6% 0.152 266.7);
Tailwind
colors: {
  custom: {
    50: '#6d6cb1',
    500: '#1d3690',
    950: '#000000',
  },
}
SCSS
$custom: #1d3690;
$custom-light: #6d6cb1;
$custom-dark: #000000;
JSON
{
  "hex": "#1d3690",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 144
  },
  "hsl": {
    "h": 226.957,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37577,
    "c": 0.1516,
    "h": 266.7
  },
  "luminance": 0.04913
}

Semantic roles & 50–950 ramp

primary
#1D3690
secondary
#BDA54B
accent
#C43EE9
background
#F7F6FB
surface
#EDEBF6
border
#C8C6D0
text
#080711
muted
#7B7A80

Preview Lab

Preview with #1D3690

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

Preview Lab → · Contrast checker → · Palette generator →

#1D3690 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva