#1B448A#1B448A

#1B448A is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.0% C 0.126 H 260.4°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#1B448A
RGB	rgb(27, 68, 138)
HSL	hsl(218, 67%, 32%)
HSV	hsv(218, 80%, 54%)
CMYK	cmyk(80.4%, 50.7%, 0%, 45.9%)
CIE-LAB	lab(29.91, 12.72, -43.08)
CIE-LCH	lch(29.91, 44.92, 286.44°)
OKLab	oklab(40% -0.021 -0.1239)
OKLCH	oklch(40% 0.126 260.4)
XYZ	xyz(7.1049, 6.2014, 24.8624)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B448A #8A611B

analogous

#1B7C8A #1B448A #2A1B8A

triadic

#1B448A #8A1B44 #448A1B

tetradic

#1B448A #8A1B7C #8A611B #1B8A2A

square

#1B448A #8A1B7C #8A611B #1B8A2A

split-complementary

#1B448A #8A2A1B #7C8A1B

monochromatic

#071224 #112B57 #1B448A #255DBD #457CDB

Accessibility & contrast

On white

9.37

#1B448A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1B448A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B448A

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B448A	#FFFFFF	#000000	##FFFFFF
##1B448A	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4C8D

Deuteranopia (green-blind)

#004289

Tritanopia (blue-blind)

#005560

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b448a;
/* rgb */ color: rgb(27, 68, 138);
/* oklch */ color: oklch(40.0% 0.126 260.4);

Tailwind

colors: {
  custom: {
    50: '#6a77ad',
    500: '#1b448a',
    950: '#000000',
  },
}

SCSS

$custom: #1b448a;
$custom-light: #6a77ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b448a",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 138
  },
  "hsl": {
    "h": 217.838,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39997,
    "c": 0.12566,
    "h": 260.4
  },
  "luminance": 0.06202
}

Semantic roles & 50–950 ramp

primary

#1B448A

secondary

#BC9045

accent

#AA3EEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1B448A

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

Preview Lab → · Contrast checker → · Palette generator →