#1B147E#1B147E

#1B147E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.9% C 0.166 H 272.9°. Best body text is #FFFFFF at 14.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B147E
RGB	rgb(27, 20, 126)
HSL	hsl(244, 73%, 29%)
HSV	hsv(244, 84%, 49%)
CMYK	cmyk(78.6%, 84.1%, 0%, 50.6%)
CIE-LAB	lab(16.70, 39.51, -57.19)
CIE-LCH	lch(16.70, 69.51, 304.64°)
OKLab	oklab(29.93% 0.0083 -0.1655)
OKLCH	oklch(29.93% 0.166 272.9)
XYZ	xyz(4.4668, 2.2392, 19.9314)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B147E #777E14

analogous

#14427E #1B147E #50147E

triadic

#1B147E #7E1B14 #147E1B

tetradic

#1B147E #7E1442 #777E14 #147E50

square

#1B147E #7E1442 #777E14 #147E50

split-complementary

#1B147E #7E5014 #427E14

monochromatic

#06041A #100C49 #1B147E #261CB3 #3A2EDE

Accessibility & contrast

On white

14.50

#1B147E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1B147E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B147E

14.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B147E	#FFFFFF	#000000	##FFFFFF
##1B147E	1.00	14.50	1.45	14.50
#FFFFFF	14.50	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E81

Deuteranopia (green-blind)

#00247C

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b147e;
/* rgb */ color: rgb(27, 20, 126);
/* oklch */ color: oklch(29.9% 0.166 272.9);

Tailwind

colors: {
  custom: {
    50: '#6b55a5',
    500: '#1b147e',
    950: '#000000',
  },
}

SCSS

$custom: #1b147e;
$custom-light: #6b55a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b147e",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 126
  },
  "hsl": {
    "h": 243.962,
    "s": 72.603,
    "l": 28.627
  },
  "oklch": {
    "l": 0.29927,
    "c": 0.16566,
    "h": 272.9
  },
  "luminance": 0.0224
}

Semantic roles & 50–950 ramp

primary

#1B147E

secondary

#ABB33A

accent

#EF38E3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B147E

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

Preview Lab → · Contrast checker → · Palette generator →