#1D47A0#1D47A0

#1D47A0 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.5% C 0.152 H 262.7°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D47A0
RGB	rgb(29, 71, 160)
HSL	hsl(221, 69%, 37%)
HSV	hsv(221, 82%, 63%)
CMYK	cmyk(81.9%, 55.6%, 0%, 37.3%)
CIE-LAB	lab(32.49, 19.75, -52.32)
CIE-LCH	lch(32.49, 55.93, 290.68°)
OKLab	oklab(42.5% -0.0193 -0.151)
OKLCH	oklch(42.5% 0.152 262.7)
XYZ	xyz(9.1028, 7.3047, 34.1811)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D47A0 #A0761D

analogous

#1D89A0 #1D47A0 #341DA0

triadic

#1D47A0 #A01D47 #47A01D

tetradic

#1D47A0 #A01D89 #A0761D #1DA034

square

#1D47A0 #A01D89 #A0761D #1DA034

split-complementary

#1D47A0 #A0341D #89A01D

monochromatic

#0A1938 #14306C #1D47A0 #265ED4 #5783E1

Accessibility & contrast

On white

8.53

#1D47A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1D47A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D47A0

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D47A0	#FFFFFF	#000000	##FFFFFF
##1D47A0	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A3

Deuteranopia (green-blind)

#00479E

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d47a0;
/* rgb */ color: rgb(29, 71, 160);
/* oklch */ color: oklch(42.5% 0.152 262.7);

Tailwind

colors: {
  custom: {
    50: '#7079bd',
    500: '#1d47a0',
    950: '#000000',
  },
}

SCSS

$custom: #1d47a0;
$custom-light: #7079bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d47a0",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 160
  },
  "hsl": {
    "h": 220.763,
    "s": 69.312,
    "l": 37.059
  },
  "oklch": {
    "l": 0.42496,
    "c": 0.15223,
    "h": 262.7
  },
  "luminance": 0.07306
}

Semantic roles & 50–950 ramp

primary

#1D47A0

secondary

#C4A055

accent

#B43CEC

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D47A0

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

Preview Lab → · Contrast checker → · Palette generator →