#1D47A1#1D47A1

#1D47A1 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.6% C 0.154 H 262.8°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D47A1
RGB	rgb(29, 71, 161)
HSL	hsl(221, 69%, 37%)
HSV	hsv(221, 82%, 63%)
CMYK	cmyk(82%, 55.9%, 0%, 36.9%)
CIE-LAB	lab(32.57, 20.15, -52.80)
CIE-LCH	lch(32.57, 56.51, 290.89°)
OKLab	oklab(42.58% -0.0192 -0.1524)
OKLCH	oklch(42.58% 0.154 262.8)
XYZ	xyz(9.1906, 7.3398, 34.6436)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D47A1 #A1771D

analogous

#1D89A1 #1D47A1 #351DA1

triadic

#1D47A1 #A11D47 #47A11D

tetradic

#1D47A1 #A11D89 #A1771D #1DA135

square

#1D47A1 #A11D89 #A1771D #1DA135

split-complementary

#1D47A1 #A1351D #89A11D

monochromatic

#0A1939 #14306D #1D47A1 #265ED5 #5883E1

Accessibility & contrast

On white

8.51

#1D47A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1D47A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D47A1

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D47A1	#FFFFFF	#000000	##FFFFFF
##1D47A1	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A4

Deuteranopia (green-blind)

#00479F

Tritanopia (blue-blind)

#005D6D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d47a1;
/* rgb */ color: rgb(29, 71, 161);
/* oklch */ color: oklch(42.6% 0.154 262.8);

Tailwind

colors: {
  custom: {
    50: '#7079be',
    500: '#1d47a1',
    950: '#000000',
  },
}

SCSS

$custom: #1d47a1;
$custom-light: #7079be;
$custom-dark: #000000;

JSON

{
  "hex": "#1d47a1",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 161
  },
  "hsl": {
    "h": 220.909,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42579,
    "c": 0.15361,
    "h": 262.8
  },
  "luminance": 0.07341
}

Semantic roles & 50–950 ramp

primary

#1D47A1

secondary

#C4A155

accent

#B43CEC

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D47A1

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

Preview Lab → · Contrast checker → · Palette generator →