#1B147C#1B147C

#1B147C is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.163 H 273.1°. Best body text is #FFFFFF at 14.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B147C
RGB	rgb(27, 20, 124)
HSL	hsl(244, 72%, 28%)
HSV	hsv(244, 84%, 49%)
CMYK	cmyk(78.2%, 83.9%, 0%, 51.4%)
CIE-LAB	lab(16.44, 38.85, -56.33)
CIE-LCH	lch(16.44, 68.43, 304.59°)
OKLab	oklab(29.68% 0.0088 -0.163)
OKLCH	oklch(29.68% 0.163 273.1)
XYZ	xyz(4.3390, 2.1881, 19.2585)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B147C #757C14

analogous

#14417C #1B147C #4F147C

triadic

#1B147C #7C1B14 #147C1B

tetradic

#1B147C #7C1441 #757C14 #147C4F

square

#1B147C #7C1441 #757C14 #147C4F

split-complementary

#1B147C #7C4F14 #417C14

monochromatic

#06041A #100B47 #1B147C #261DB1 #392DDD

Accessibility & contrast

On white

14.61

#1B147C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1B147C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B147C

14.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B147C	#FFFFFF	#000000	##FFFFFF
##1B147C	1.00	14.61	1.44	14.61
#FFFFFF	14.61	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7F

Deuteranopia (green-blind)

#00247A

Tritanopia (blue-blind)

#003549

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b147c;
/* rgb */ color: rgb(27, 20, 124);
/* oklch */ color: oklch(29.7% 0.163 273.1);

Tailwind

colors: {
  custom: {
    50: '#6a55a3',
    500: '#1b147c',
    950: '#000000',
  },
}

SCSS

$custom: #1b147c;
$custom-light: #6a55a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b147c",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 124
  },
  "hsl": {
    "h": 244.038,
    "s": 72.222,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29681,
    "c": 0.1632,
    "h": 273.1
  },
  "luminance": 0.02189
}

Semantic roles & 50–950 ramp

primary

#1B147C

secondary

#A9B23A

accent

#EF39E3

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1B147C

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

Preview Lab → · Contrast checker → · Palette generator →