#1B408A#1B408A

#1B408A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.1% C 0.131 H 262.2°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#1B408A
RGB	rgb(27, 64, 138)
HSL	hsl(220, 67%, 32%)
HSV	hsv(220, 80%, 54%)
CMYK	cmyk(80.4%, 53.6%, 0%, 45.9%)
CIE-LAB	lab(28.73, 15.48, -44.99)
CIE-LCH	lch(28.73, 47.58, 288.99°)
OKLab	oklab(39.09% -0.0177 -0.1296)
OKLCH	oklch(39.09% 0.131 262.2)
XYZ	xyz(6.8712, 5.7340, 24.7845)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B408A #8A651B

analogous

#1B788A #1B408A #2D1B8A

triadic

#1B408A #8A1B40 #408A1B

tetradic

#1B408A #8A1B78 #8A651B #1B8A2D

square

#1B408A #8A1B78 #8A651B #1B8A2D

split-complementary

#1B408A #8A2D1B #788A1B

monochromatic

#071124 #112857 #1B408A #2558BD #4577DB

Accessibility & contrast

On white

9.78

#1B408A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1B408A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B408A

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B408A	#FFFFFF	#000000	##FFFFFF
##1B408A	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C498D

Deuteranopia (green-blind)

#003F89

Tritanopia (blue-blind)

#00525E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b408a;
/* rgb */ color: rgb(27, 64, 138);
/* oklch */ color: oklch(39.1% 0.131 262.2);

Tailwind

colors: {
  custom: {
    50: '#6a74ad',
    500: '#1b408a',
    950: '#000000',
  },
}

SCSS

$custom: #1b408a;
$custom-light: #6a74ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b408a",
  "rgb": {
    "r": 27,
    "g": 64,
    "b": 138
  },
  "hsl": {
    "h": 220,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39093,
    "c": 0.13082,
    "h": 262.2
  },
  "luminance": 0.05735
}

Semantic roles & 50–950 ramp

primary

#1B408A

secondary

#BC9445

accent

#B13EEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1B408A

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

Preview Lab → · Contrast checker → · Palette generator →