#1D47AE#1D47AE

#1D47AE is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.171 H 263.8°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#1D47AE
RGB	rgb(29, 71, 174)
HSL	hsl(223, 71%, 40%)
HSV	hsv(223, 83%, 68%)
CMYK	cmyk(83.3%, 59.2%, 0%, 31.8%)
CIE-LAB	lab(33.61, 25.29, -58.89)
CIE-LCH	lch(33.61, 64.09, 293.24°)
OKLab	oklab(43.69% -0.0184 -0.1703)
OKLCH	oklch(43.69% 0.171 263.8)
XYZ	xyz(10.3972, 7.8224, 40.9981)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D47AE #AE841D

analogous

#1D8FAE #1D47AE #3C1DAE

triadic

#1D47AE #AE1D47 #47AE1D

tetradic

#1D47AE #AE1D8F #AE841D #1DAE3C

square

#1D47AE #AE1D8F #AE841D #1DAE3C

split-complementary

#1D47AE #AE3C1D #8FAE1D

monochromatic

#0C1C45 #14327A #1D47AE #2C5FDC #6187E5

Accessibility & contrast

On white

8.19

#1D47AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1D47AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D47AE

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D47AE	#FFFFFF	#000000	##FFFFFF
##1D47AE	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B1

Deuteranopia (green-blind)

#0049AC

Tritanopia (blue-blind)

#006173

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1d47ae;
/* rgb */ color: rgb(29, 71, 174);
/* oklch */ color: oklch(43.7% 0.171 263.8);

Tailwind

colors: {
  custom: {
    50: '#7479c7',
    500: '#1d47ae',
    950: '#000000',
  },
}

SCSS

$custom: #1d47ae;
$custom-light: #7479c7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d47ae",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 174
  },
  "hsl": {
    "h": 222.621,
    "s": 71.429,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4369,
    "c": 0.17127,
    "h": 263.8
  },
  "luminance": 0.07824
}

Semantic roles & 50–950 ramp

primary

#1D47AE

secondary

#C9AA5E

accent

#BA3AEE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1D47AE

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

Preview Lab → · Contrast checker → · Palette generator →