#1D4C91#1D4C91

#1D4C91 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.4% C 0.125 H 258.4°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C91
RGB	rgb(29, 76, 145)
HSL	hsl(216, 67%, 34%)
HSV	hsv(216, 80%, 57%)
CMYK	cmyk(80%, 47.6%, 0%, 43.1%)
CIE-LAB	lab(32.86, 10.32, -42.62)
CIE-LCH	lch(32.86, 43.86, 283.62°)
OKLab	oklab(42.43% -0.0252 -0.1224)
OKLCH	oklch(42.43% 0.125 258.4)
XYZ	xyz(8.2001, 7.4735, 27.7929)
Luminance	0.0747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C91 #91621D

analogous

#1D8691 #1D4C91 #281D91

triadic

#1D4C91 #911D4C #4C911D

tetradic

#1D4C91 #911D86 #91621D #1D9128

square

#1D4C91 #911D86 #91621D #1D9128

split-complementary

#1D4C91 #91281D #86911D

monochromatic

#09172B #13315E #1D4C91 #2767C4 #4D87DB

Accessibility & contrast

On white

8.42

#1D4C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1D4C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C91

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C91	#FFFFFF	#000000	##FFFFFF
##1D4C91	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275394

Deuteranopia (green-blind)

#074890

Tritanopia (blue-blind)

#005C67

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4c91;
/* rgb */ color: rgb(29, 76, 145);
/* oklch */ color: oklch(42.4% 0.125 258.4);

Tailwind

colors: {
  custom: {
    50: '#6c7db2',
    500: '#1d4c91',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c91;
$custom-light: #6c7db2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c91",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 145
  },
  "hsl": {
    "h": 215.69,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42434,
    "c": 0.12493,
    "h": 258.4
  },
  "luminance": 0.07474
}

Semantic roles & 50–950 ramp

primary

#1D4C91

secondary

#BE904C

accent

#A43EEA

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4C91

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

Preview Lab → · Contrast checker → · Palette generator →