#1B408D#1B408D

#1B408D is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.135 H 262.6°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B408D
RGB	rgb(27, 64, 141)
HSL	hsl(221, 68%, 33%)
HSV	hsv(221, 81%, 55%)
CMYK	cmyk(80.9%, 54.6%, 0%, 44.7%)
CIE-LAB	lab(28.96, 16.70, -46.48)
CIE-LCH	lch(28.96, 49.39, 289.77°)
OKLab	oklab(39.34% -0.0174 -0.134)
OKLCH	oklch(39.34% 0.135 262.6)
XYZ	xyz(7.0914, 5.8221, 25.9442)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B408D #8D681B

analogous

#1B798D #1B408D #2F1B8D

triadic

#1B408D #8D1B40 #408D1B

tetradic

#1B408D #8D1B79 #8D681B #1B8D2F

square

#1B408D #8D1B79 #8D681B #1B8D2F

split-complementary

#1B408D #8D2F1B #798D1B

monochromatic

#071126 #11295A #1B408D #2557C0 #4777DC

Accessibility & contrast

On white

9.70

#1B408D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1B408D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B408D

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B408D	#FFFFFF	#000000	##FFFFFF
##1B408D	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044A90

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b408d;
/* rgb */ color: rgb(27, 64, 141);
/* oklch */ color: oklch(39.3% 0.135 262.6);

Tailwind

colors: {
  custom: {
    50: '#6b74af',
    500: '#1b408d',
    950: '#000000',
  },
}

SCSS

$custom: #1b408d;
$custom-light: #6b74af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b408d",
  "rgb": {
    "r": 27,
    "g": 64,
    "b": 141
  },
  "hsl": {
    "h": 220.526,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.39338,
    "c": 0.1351,
    "h": 262.6
  },
  "luminance": 0.05823
}

Semantic roles & 50–950 ramp

primary

#1B408D

secondary

#BD9746

accent

#B23DEB

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1B408D

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

Preview Lab → · Contrast checker → · Palette generator →