#1B1390#1B1390

#1B1390 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.1% C 0.188 H 271.2°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#1B1390
RGB	rgb(27, 19, 144)
HSL	hsl(244, 77%, 32%)
HSV	hsv(244, 87%, 56%)
CMYK	cmyk(81.3%, 86.8%, 0%, 43.5%)
CIE-LAB	lab(18.85, 45.69, -64.94)
CIE-LCH	lch(18.85, 79.41, 305.13°)
OKLab	oklab(32.07% 0.0038 -0.1879)
OKLCH	oklch(32.07% 0.188 271.2)
XYZ	xyz(5.7172, 2.7117, 26.6022)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1390 #889013

analogous

#134A90 #1B1390 #5A1390

triadic

#1B1390 #901B13 #13901B

tetradic

#1B1390 #90134A #889013 #13905A

square

#1B1390 #90134A #889013 #13905A

split-complementary

#1B1390 #905A13 #4A9013

monochromatic

#070524 #110C5A #1B1390 #251AC6 #4439E5

Accessibility & contrast

On white

13.62

#1B1390 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1B1390 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1390

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1390	#FFFFFF	#000000	##FFFFFF
##1B1390	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003493

Deuteranopia (green-blind)

#00278E

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b1390;
/* rgb */ color: rgb(27, 19, 144);
/* oklch */ color: oklch(32.1% 0.188 271.2);

Tailwind

colors: {
  custom: {
    50: '#7056b2',
    500: '#1b1390',
    950: '#000000',
  },
}

SCSS

$custom: #1b1390;
$custom-light: #7056b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1390",
  "rgb": {
    "r": 27,
    "g": 19,
    "b": 144
  },
  "hsl": {
    "h": 243.84,
    "s": 76.687,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32075,
    "c": 0.18792,
    "h": 271.2
  },
  "luminance": 0.02712
}

Semantic roles & 50–950 ramp

primary

#1B1390

secondary

#BBC43B

accent

#F335E7

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1B1390

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

Preview Lab → · Contrast checker → · Palette generator →