#1D4EA6#1D4EA6

#1D4EA6 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.5% C 0.152 H 261.0°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D4EA6
RGB	rgb(29, 78, 166)
HSL	hsl(219, 70%, 38%)
HSV	hsv(219, 83%, 65%)
CMYK	cmyk(82.5%, 53%, 0%, 34.9%)
CIE-LAB	lab(34.93, 17.40, -51.97)
CIE-LCH	lch(34.93, 54.81, 288.51°)
OKLab	oklab(44.49% -0.0236 -0.1498)
OKLCH	oklch(44.49% 0.152 261)
XYZ	xyz(10.1115, 8.4619, 37.1694)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4EA6 #A6751D

analogous

#1D92A6 #1D4EA6 #301DA6

triadic

#1D4EA6 #A61D4E #4EA61D

tetradic

#1D4EA6 #A61D92 #A6751D #1DA630

square

#1D4EA6 #A61D92 #A6751D #1DA630

split-complementary

#1D4EA6 #A6301D #92A61D

monochromatic

#0B1D3E #143672 #1D4EA6 #2767D9 #5B8BE2

Accessibility & contrast

On white

7.80

#1D4EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1D4EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4EA6

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4EA6	#FFFFFF	#000000	##FFFFFF
##1D4EA6	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D59A9

Deuteranopia (green-blind)

#004CA4

Tritanopia (blue-blind)

#006472

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d4ea6;
/* rgb */ color: rgb(29, 78, 166);
/* oklch */ color: oklch(44.5% 0.152 261.0);

Tailwind

colors: {
  custom: {
    50: '#717ec1',
    500: '#1d4ea6',
    950: '#000000',
  },
}

SCSS

$custom: #1d4ea6;
$custom-light: #717ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4ea6",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 166
  },
  "hsl": {
    "h": 218.54,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44489,
    "c": 0.15168,
    "h": 261
  },
  "luminance": 0.08463
}

Semantic roles & 50–950 ramp

primary

#1D4EA6

secondary

#C69F59

accent

#AD3BED

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D4EA6

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

Preview Lab → · Contrast checker → · Palette generator →