#1D47A8#1D47A8

#1D47A8 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.2% C 0.163 H 263.4°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#1D47A8
RGB	rgb(29, 71, 168)
HSL	hsl(222, 71%, 39%)
HSV	hsv(222, 83%, 66%)
CMYK	cmyk(82.7%, 57.7%, 0%, 34.1%)
CIE-LAB	lab(33.12, 22.93, -56.10)
CIE-LCH	lch(33.12, 60.61, 292.23°)
OKLab	oklab(43.17% -0.0187 -0.1621)
OKLCH	oklch(43.17% 0.163 263.4)
XYZ	xyz(9.8253, 7.5936, 37.9861)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D47A8 #A87E1D

analogous

#1D8CA8 #1D47A8 #391DA8

triadic

#1D47A8 #A81D47 #47A81D

tetradic

#1D47A8 #A81D8C #A87E1D #1DA839

square

#1D47A8 #A81D8C #A87E1D #1DA839

split-complementary

#1D47A8 #A8391D #8CA81D

monochromatic

#0B1B40 #143174 #1D47A8 #285EDA #5C85E3

Accessibility & contrast

On white

8.34

#1D47A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1D47A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D47A8

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D47A8	#FFFFFF	#000000	##FFFFFF
##1D47A8	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0048A6

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d47a8;
/* rgb */ color: rgb(29, 71, 168);
/* oklch */ color: oklch(43.2% 0.163 263.4);

Tailwind

colors: {
  custom: {
    50: '#7279c3',
    500: '#1d47a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d47a8;
$custom-light: #7279c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d47a8",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 168
  },
  "hsl": {
    "h": 221.871,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.43171,
    "c": 0.16318,
    "h": 263.4
  },
  "luminance": 0.07595
}

Semantic roles & 50–950 ramp

primary

#1D47A8

secondary

#C7A65A

accent

#B73AED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D47A8

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

Preview Lab → · Contrast checker → · Palette generator →