#1D47A7#1D47A7

#1D47A7 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.162 H 263.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D47A7
RGB	rgb(29, 71, 167)
HSL	hsl(222, 70%, 38%)
HSV	hsv(222, 83%, 65%)
CMYK	cmyk(82.6%, 57.5%, 0%, 34.5%)
CIE-LAB	lab(33.04, 22.53, -55.63)
CIE-LCH	lch(33.04, 60.02, 292.05°)
OKLab	oklab(43.09% -0.0188 -0.1607)
OKLCH	oklch(43.09% 0.162 263.3)
XYZ	xyz(9.7325, 7.5565, 37.4973)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D47A7 #A77D1D

analogous

#1D8CA7 #1D47A7 #381DA7

triadic

#1D47A7 #A71D47 #47A71D

tetradic

#1D47A7 #A71D8C #A77D1D #1DA738

square

#1D47A7 #A71D8C #A77D1D #1DA738

split-complementary

#1D47A7 #A7381D #8CA71D

monochromatic

#0B1B3F #143173 #1D47A7 #285EDA #5C85E3

Accessibility & contrast

On white

8.36

#1D47A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1D47A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D47A7

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D47A7	#FFFFFF	#000000	##FFFFFF
##1D47A7	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AA

Deuteranopia (green-blind)

#0048A5

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d47a7;
/* rgb */ color: rgb(29, 71, 167);
/* oklch */ color: oklch(43.1% 0.162 263.3);

Tailwind

colors: {
  custom: {
    50: '#7279c2',
    500: '#1d47a7',
    950: '#000000',
  },
}

SCSS

$custom: #1d47a7;
$custom-light: #7279c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d47a7",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 167
  },
  "hsl": {
    "h": 221.739,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43085,
    "c": 0.16182,
    "h": 263.3
  },
  "luminance": 0.07558
}

Semantic roles & 50–950 ramp

primary

#1D47A7

secondary

#C7A559

accent

#B73BED

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D47A7

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

Preview Lab → · Contrast checker → · Palette generator →