#1D4DA8#1D4DA8

#1D4DA8 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.4% C 0.156 H 261.6°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX#1D4DA8
RGBrgb(29, 77, 168)
HSLhsl(219, 71%, 39%)
HSVhsv(219, 83%, 66%)
CMYKcmyk(82.7%, 54.2%, 0%, 34.1%)
CIE-LABlab(34.79, 18.88, -53.39)
CIE-LCHlch(34.79, 56.62, 289.47°)
OKLaboklab(44.43% -0.0227 -0.154)
OKLCHoklch(44.43% 0.156 261.6)
XYZxyz(10.2259, 8.3949, 38.1196)
Luminance0.0840 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D4DA8 #A8781D
analogous
#1D92A8 #1D4DA8 #331DA8
triadic
#1D4DA8 #A81D4D #4DA81D
tetradic
#1D4DA8 #A81D92 #A8781D #1DA833
square
#1D4DA8 #A81D92 #A8781D #1DA833
split-complementary
#1D4DA8 #A8331D #92A81D
monochromatic
#0B1D40 #143574 #1D4DA8 #2866DA #5C8BE3

Accessibility & contrast

On white

7.84
#1D4DA8 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.68
#1D4DA8 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4DA8
7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D4DA8#FFFFFF#000000##FFFFFF
##1D4DA81.007.842.687.84
#FFFFFF7.841.0021.001.00
#0000002.6821.001.0021.00
##FFFFFF7.841.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058AB
Deuteranopia (green-blind)
#004CA6
Tritanopia (blue-blind)
#006373
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #1d4da8;
/* rgb */ color: rgb(29, 77, 168);
/* oklch */ color: oklch(44.4% 0.156 261.6);
Tailwind
colors: {
  custom: {
    50: '#727ec3',
    500: '#1d4da8',
    950: '#000000',
  },
}
SCSS
$custom: #1d4da8;
$custom-light: #727ec3;
$custom-dark: #000000;
JSON
{
  "hex": "#1d4da8",
  "rgb": {
    "r": 29,
    "g": 77,
    "b": 168
  },
  "hsl": {
    "h": 219.281,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.44434,
    "c": 0.15568,
    "h": 261.6
  },
  "luminance": 0.08396
}

Semantic roles & 50–950 ramp

primary
#1D4DA8
secondary
#C7A15A
accent
#B03AED
background
#F7F7FC
surface
#EDEEF8
border
#C8C9D1
text
#090912
muted
#7B7B81

Preview Lab

Preview with #1D4DA8

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

Preview Lab → · Contrast checker → · Palette generator →

#1D4DA8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva