#1B2A8A#1B2A8A

#1B2A8A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.6% C 0.159 H 268.9°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A8A
RGB	rgb(27, 42, 138)
HSL	hsl(232, 67%, 32%)
HSV	hsv(232, 80%, 54%)
CMYK	cmyk(80.4%, 69.6%, 0%, 45.9%)
CIE-LAB	lab(22.73, 30.63, -54.78)
CIE-LCH	lch(22.73, 62.76, 299.21°)
OKLab	oklab(34.62% -0.0031 -0.1586)
OKLCH	oklch(34.62% 0.159 268.9)
XYZ	xyz(5.8658, 3.7233, 24.4493)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A8A #8A7B1B

analogous

#1B628A #1B2A8A #441B8A

triadic

#1B2A8A #8A1B2A #2A8A1B

tetradic

#1B2A8A #8A1B62 #8A7B1B #1B8A44

square

#1B2A8A #8A1B62 #8A7B1B #1B8A44

split-complementary

#1B2A8A #8A441B #628A1B

monochromatic

#070B24 #111A57 #1B2A8A #253ABD #4559DB

Accessibility & contrast

On white

12.04

#1B2A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B2A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A8A

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A8A	#FFFFFF	#000000	##FFFFFF
##1B2A8A	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8D

Deuteranopia (green-blind)

#003188

Tritanopia (blue-blind)

#004456

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2a8a;
/* rgb */ color: rgb(27, 42, 138);
/* oklch */ color: oklch(34.6% 0.159 268.9);

Tailwind

colors: {
  custom: {
    50: '#6c63ad',
    500: '#1b2a8a',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a8a;
$custom-light: #6c63ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a8a",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 138
  },
  "hsl": {
    "h": 231.892,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.34623,
    "c": 0.15864,
    "h": 268.9
  },
  "luminance": 0.03724
}

Semantic roles & 50–950 ramp

primary

#1B2A8A

secondary

#BCAC45

accent

#D33EEA

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B2A8A

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

Preview Lab → · Contrast checker → · Palette generator →