#1B47AE#1B47AE

#1B47AE is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.172 H 263.4°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#1B47AE
RGB	rgb(27, 71, 174)
HSL	hsl(222, 73%, 39%)
HSV	hsv(222, 84%, 68%)
CMYK	cmyk(84.5%, 59.2%, 0%, 31.8%)
CIE-LAB	lab(33.55, 25.13, -58.99)
CIE-LCH	lch(33.55, 64.12, 293.07°)
OKLab	oklab(43.63% -0.0196 -0.1706)
OKLCH	oklch(43.63% 0.172 263.4)
XYZ	xyz(10.3425, 7.7942, 40.9955)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B47AE #AE821B

analogous

#1B91AE #1B47AE #391BAE

triadic

#1B47AE #AE1B47 #47AE1B

tetradic

#1B47AE #AE1B91 #AE821B #1BAE39

square

#1B47AE #AE1B91 #AE821B #1BAE39

split-complementary

#1B47AE #AE391B #91AE1B

monochromatic

#0B1C44 #133179 #1B47AE #285FDE #5D86E6

Accessibility & contrast

On white

8.21

#1B47AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1B47AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B47AE

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B47AE	#FFFFFF	#000000	##FFFFFF
##1B47AE	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B1

Deuteranopia (green-blind)

#0048AC

Tritanopia (blue-blind)

#006173

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b47ae;
/* rgb */ color: rgb(27, 71, 174);
/* oklch */ color: oklch(43.6% 0.172 263.4);

Tailwind

colors: {
  custom: {
    50: '#7379c7',
    500: '#1b47ae',
    950: '#000000',
  },
}

SCSS

$custom: #1b47ae;
$custom-light: #7379c7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b47ae",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 174
  },
  "hsl": {
    "h": 222.041,
    "s": 73.134,
    "l": 39.412
  },
  "oklch": {
    "l": 0.43628,
    "c": 0.17173,
    "h": 263.4
  },
  "luminance": 0.07795
}

Semantic roles & 50–950 ramp

primary

#1B47AE

secondary

#CAA95B

accent

#B938F0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1B47AE

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

Preview Lab → · Contrast checker → · Palette generator →