#1B1479#1B1479

#1B1479 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.3% C 0.159 H 273.5°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#1B1479
RGB	rgb(27, 20, 121)
HSL	hsl(244, 72%, 28%)
HSV	hsv(244, 83%, 47%)
CMYK	cmyk(77.7%, 83.5%, 0%, 52.5%)
CIE-LAB	lab(16.07, 37.86, -55.03)
CIE-LCH	lch(16.07, 66.79, 304.53°)
OKLab	oklab(29.31% 0.0096 -0.1592)
OKLCH	oklch(29.31% 0.159 273.5)
XYZ	xyz(4.1522, 2.1134, 18.2745)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1479 #727914

analogous

#144079 #1B1479 #4D1479

triadic

#1B1479 #791B14 #14791B

tetradic

#1B1479 #791440 #727914 #14794D

square

#1B1479 #791440 #727914 #14794D

split-complementary

#1B1479 #794D14 #407914

monochromatic

#06041A #0F0B44 #1B1479 #271DAE #382BDC

Accessibility & contrast

On white

14.76

#1B1479 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1B1479 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1479

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1479	#FFFFFF	#000000	##FFFFFF
##1B1479	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7C

Deuteranopia (green-blind)

#002377

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b1479;
/* rgb */ color: rgb(27, 20, 121);
/* oklch */ color: oklch(29.3% 0.159 273.5);

Tailwind

colors: {
  custom: {
    50: '#6954a1',
    500: '#1b1479',
    950: '#000000',
  },
}

SCSS

$custom: #1b1479;
$custom-light: #6954a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1479",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 121
  },
  "hsl": {
    "h": 244.158,
    "s": 71.631,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29313,
    "c": 0.15947,
    "h": 273.5
  },
  "luminance": 0.02114
}

Semantic roles & 50–950 ramp

primary

#1B1479

secondary

#A7AF3A

accent

#EE39E2

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1B1479

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

Preview Lab → · Contrast checker → · Palette generator →