#1D47A6#1D47A6

#1D47A6 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.0% C 0.160 H 263.3°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D47A6
RGB	rgb(29, 71, 166)
HSL	hsl(222, 70%, 38%)
HSV	hsv(222, 83%, 65%)
CMYK	cmyk(82.5%, 57.2%, 0%, 34.9%)
CIE-LAB	lab(32.96, 22.14, -55.16)
CIE-LCH	lch(32.96, 59.44, 291.86°)
OKLab	oklab(43% -0.0188 -0.1593)
OKLCH	oklch(43% 0.16 263.3)
XYZ	xyz(9.6404, 7.5197, 37.0124)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D47A6 #A67C1D

analogous

#1D8BA6 #1D47A6 #381DA6

triadic

#1D47A6 #A61D47 #47A61D

tetradic

#1D47A6 #A61D8B #A67C1D #1DA638

square

#1D47A6 #A61D8B #A67C1D #1DA638

split-complementary

#1D47A6 #A6381D #8BA61D

monochromatic

#0B1A3E #143172 #1D47A6 #275ED9 #5B85E2

Accessibility & contrast

On white

8.39

#1D47A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1D47A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D47A6

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D47A6	#FFFFFF	#000000	##FFFFFF
##1D47A6	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A9

Deuteranopia (green-blind)

#0047A4

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d47a6;
/* rgb */ color: rgb(29, 71, 166);
/* oklch */ color: oklch(43.0% 0.160 263.3);

Tailwind

colors: {
  custom: {
    50: '#7179c1',
    500: '#1d47a6',
    950: '#000000',
  },
}

SCSS

$custom: #1d47a6;
$custom-light: #7179c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d47a6",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 166
  },
  "hsl": {
    "h": 221.606,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.43,
    "c": 0.16046,
    "h": 263.3
  },
  "luminance": 0.07521
}

Semantic roles & 50–950 ramp

primary

#1D47A6

secondary

#C6A559

accent

#B63BED

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D47A6

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

Preview Lab → · Contrast checker → · Palette generator →