#1D4CA6#1D4CA6

#1D4CA6 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.1% C 0.154 H 261.7°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D4CA6
RGB	rgb(29, 76, 166)
HSL	hsl(219, 70%, 38%)
HSV	hsv(219, 83%, 65%)
CMYK	cmyk(82.5%, 54.2%, 0%, 34.9%)
CIE-LAB	lab(34.36, 18.75, -52.89)
CIE-LCH	lch(34.36, 56.12, 289.52°)
OKLab	oklab(44.06% -0.0222 -0.1526)
OKLCH	oklch(44.06% 0.154 261.7)
XYZ	xyz(9.9716, 8.1821, 37.1227)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4CA6 #A6771D

analogous

#1D90A6 #1D4CA6 #321DA6

triadic

#1D4CA6 #A61D4C #4CA61D

tetradic

#1D4CA6 #A61D90 #A6771D #1DA632

square

#1D4CA6 #A61D90 #A6771D #1DA632

split-complementary

#1D4CA6 #A6321D #90A61D

monochromatic

#0B1C3E #143472 #1D4CA6 #2764D9 #5B89E2

Accessibility & contrast

On white

7.96

#1D4CA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1D4CA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4CA6

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4CA6	#FFFFFF	#000000	##FFFFFF
##1D4CA6	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057A9

Deuteranopia (green-blind)

#004BA4

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d4ca6;
/* rgb */ color: rgb(29, 76, 166);
/* oklch */ color: oklch(44.1% 0.154 261.7);

Tailwind

colors: {
  custom: {
    50: '#717dc1',
    500: '#1d4ca6',
    950: '#000000',
  },
}

SCSS

$custom: #1d4ca6;
$custom-light: #717dc1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4ca6",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 166
  },
  "hsl": {
    "h": 219.416,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44057,
    "c": 0.15419,
    "h": 261.7
  },
  "luminance": 0.08183
}

Semantic roles & 50–950 ramp

primary

#1D4CA6

secondary

#C6A159

accent

#B03BED

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4CA6

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

Preview Lab → · Contrast checker → · Palette generator →