#1D3687#1D3687

#1D3687 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.139 H 266.4°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX#1D3687
RGBrgb(29, 54, 135)
HSLhsl(226, 65%, 32%)
HSVhsv(226, 79%, 53%)
CMYKcmyk(78.5%, 60%, 0%, 47.1%)
CIE-LABlab(25.71, 21.47, -48.04)
CIE-LCHlch(25.71, 52.62, 294.08°)
OKLaboklab(36.76% -0.0088 -0.1387)
OKLCHoklch(36.76% 0.139 266.4)
XYZxyz(6.1975, 4.6481, 23.4875)
Luminance0.0465 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D3687 #876E1D
analogous
#1D6B87 #1D3687 #391D87
triadic
#1D3687 #871D36 #36871D
tetradic
#1D3687 #871D6B #876E1D #1D8739
square
#1D3687 #871D6B #876E1D #1D8739
split-complementary
#1D3687 #87391D #6B871D
monochromatic
#070E22 #122255 #1D3687 #284AB9 #4769D7

Accessibility & contrast

On white

10.88
#1D3687 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#1D3687 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3687
10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D3687#FFFFFF#000000##FFFFFF
##1D36871.0010.881.9310.88
#FFFFFF10.881.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.881.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00428A
Deuteranopia (green-blind)
#003885
Tritanopia (blue-blind)
#004A59
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #1d3687;
/* rgb */ color: rgb(29, 54, 135);
/* oklch */ color: oklch(36.8% 0.139 266.4);
Tailwind
colors: {
  custom: {
    50: '#6b6cab',
    500: '#1d3687',
    950: '#000000',
  },
}
SCSS
$custom: #1d3687;
$custom-light: #6b6cab;
$custom-dark: #000000;
JSON
{
  "hex": "#1d3687",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 135
  },
  "hsl": {
    "h": 225.849,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.36757,
    "c": 0.13898,
    "h": 266.4
  },
  "luminance": 0.04649
}

Semantic roles & 50–950 ramp

primary
#1D3687
secondary
#B99E46
accent
#C040E8
background
#F6F6FA
surface
#ECEBF4
border
#C7C6CE
text
#080710
muted
#7A7A7F

Preview Lab

Preview with #1D3687

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

Preview Lab → · Contrast checker → · Palette generator →

#1D3687 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva