#1B147F#1B147F

#1B147F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.167 H 272.8°. Best body text is #FFFFFF at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B147F
RGB	rgb(27, 20, 127)
HSL	hsl(244, 73%, 29%)
HSV	hsv(244, 84%, 50%)
CMYK	cmyk(78.7%, 84.3%, 0%, 50.2%)
CIE-LAB	lab(16.82, 39.83, -57.62)
CIE-LCH	lch(16.82, 70.05, 304.66°)
OKLab	oklab(30.05% 0.008 -0.1667)
OKLCH	oklch(30.05% 0.167 272.8)
XYZ	xyz(4.5316, 2.2651, 20.2729)
Luminance	0.0227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B147F #787F14

analogous

#14437F #1B147F #51147F

triadic

#1B147F #7F1B14 #147F1B

tetradic

#1B147F #7F1443 #787F14 #147F51

square

#1B147F #7F1443 #787F14 #147F51

split-complementary

#1B147F #7F5114 #437F14

monochromatic

#06041A #100C4A #1B147F #261CB4 #3B2FDE

Accessibility & contrast

On white

14.45

#1B147F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1B147F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B147F

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B147F	#FFFFFF	#000000	##FFFFFF
##1B147F	1.00	14.45	1.45	14.45
#FFFFFF	14.45	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E82

Deuteranopia (green-blind)

#00247D

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b147f;
/* rgb */ color: rgb(27, 20, 127);
/* oklch */ color: oklch(30.0% 0.167 272.8);

Tailwind

colors: {
  custom: {
    50: '#6b55a5',
    500: '#1b147f',
    950: '#000000',
  },
}

SCSS

$custom: #1b147f;
$custom-light: #6b55a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b147f",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 127
  },
  "hsl": {
    "h": 243.925,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3005,
    "c": 0.16688,
    "h": 272.8
  },
  "luminance": 0.02266
}

Semantic roles & 50–950 ramp

primary

#1B147F

secondary

#ACB43B

accent

#EF38E3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B147F

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

Preview Lab → · Contrast checker → · Palette generator →