#1D4CA7#1D4CA7

#1D4CA7 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.1% C 0.156 H 261.8°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D4CA7
RGB	rgb(29, 76, 167)
HSL	hsl(220, 70%, 38%)
HSV	hsv(220, 83%, 65%)
CMYK	cmyk(82.6%, 54.5%, 0%, 34.5%)
CIE-LAB	lab(34.43, 19.15, -53.37)
CIE-LCH	lch(34.43, 56.70, 289.74°)
OKLab	oklab(44.14% -0.0221 -0.154)
OKLCH	oklch(44.14% 0.156 261.8)
XYZ	xyz(10.0637, 8.2189, 37.6077)
Luminance	0.0822 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4CA7 #A7781D

analogous

#1D91A7 #1D4CA7 #331DA7

triadic

#1D4CA7 #A71D4C #4CA71D

tetradic

#1D4CA7 #A71D91 #A7781D #1DA733

square

#1D4CA7 #A71D91 #A7781D #1DA733

split-complementary

#1D4CA7 #A7331D #91A71D

monochromatic

#0B1D3F #143473 #1D4CA7 #2864DA #5C8AE3

Accessibility & contrast

On white

7.94

#1D4CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1D4CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4CA7

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4CA7	#FFFFFF	#000000	##FFFFFF
##1D4CA7	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058AA

Deuteranopia (green-blind)

#004BA5

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d4ca7;
/* rgb */ color: rgb(29, 76, 167);
/* oklch */ color: oklch(44.1% 0.156 261.8);

Tailwind

colors: {
  custom: {
    50: '#717dc2',
    500: '#1d4ca7',
    950: '#000000',
  },
}

SCSS

$custom: #1d4ca7;
$custom-light: #717dc2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4ca7",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 167
  },
  "hsl": {
    "h": 219.565,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44139,
    "c": 0.15556,
    "h": 261.8
  },
  "luminance": 0.0822
}

Semantic roles & 50–950 ramp

primary

#1D4CA7

secondary

#C7A159

accent

#B03BED

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4CA7

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

Preview Lab → · Contrast checker → · Palette generator →