#1B1478#1B1478

#1B1478 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.2% C 0.158 H 273.6°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#1B1478
RGB	rgb(27, 20, 120)
HSL	hsl(244, 71%, 27%)
HSV	hsv(244, 83%, 47%)
CMYK	cmyk(77.5%, 83.3%, 0%, 52.9%)
CIE-LAB	lab(15.95, 37.52, -54.59)
CIE-LCH	lch(15.95, 66.24, 304.50°)
OKLab	oklab(29.19% 0.0099 -0.1579)
OKLCH	oklch(29.19% 0.158 273.6)
XYZ	xyz(4.0912, 2.0890, 17.9533)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1478 #717814

analogous

#143F78 #1B1478 #4D1478

triadic

#1B1478 #781B14 #14781B

tetradic

#1B1478 #78143F #717814 #14784D

square

#1B1478 #78143F #717814 #14784D

split-complementary

#1B1478 #784D14 #3F7814

monochromatic

#06041A #0F0B44 #1B1478 #271DAC #372BDC

Accessibility & contrast

On white

14.81

#1B1478 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1B1478 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1478

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1478	#FFFFFF	#000000	##FFFFFF
##1B1478	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C7B

Deuteranopia (green-blind)

#002376

Tritanopia (blue-blind)

#003346

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b1478;
/* rgb */ color: rgb(27, 20, 120);
/* oklch */ color: oklch(29.2% 0.158 273.6);

Tailwind

colors: {
  custom: {
    50: '#6954a0',
    500: '#1b1478',
    950: '#000000',
  },
}

SCSS

$custom: #1b1478;
$custom-light: #6954a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1478",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 120
  },
  "hsl": {
    "h": 244.2,
    "s": 71.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.2919,
    "c": 0.15823,
    "h": 273.6
  },
  "luminance": 0.02089
}

Semantic roles & 50–950 ramp

primary

#1B1478

secondary

#A6AE3A

accent

#EE3AE2

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1B1478

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

Preview Lab → · Contrast checker → · Palette generator →