#1B344A#1B344A

#1B344A is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.6% C 0.050 H 246.8°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1B344A
RGB	rgb(27, 52, 74)
HSL	hsl(208, 47%, 20%)
HSV	hsv(208, 64%, 29%)
CMYK	cmyk(63.5%, 29.7%, 0%, 71%)
CIE-LAB	lab(20.76, -1.94, -16.50)
CIE-LCH	lch(20.76, 16.61, 263.28°)
OKLab	oklab(31.59% -0.0199 -0.0463)
OKLCH	oklch(31.59% 0.05 246.8)
XYZ	xyz(2.9156, 3.1832, 6.9380)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B344A #4A311B

analogous

#1B4A49 #1B344A #1B1D4A

triadic

#1B344A #4A1B34 #344A1B

tetradic

#1B344A #491B4A #4A311B #1D4A1B

square

#1B344A #491B4A #4A311B #1D4A1B

split-complementary

#1B344A #4A1B1D #4A491B

monochromatic

#081016 #0B141D #1B344A #2B5477 #3C73A4

Accessibility & contrast

On white

12.83

#1B344A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1B344A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B344A

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B344A	#FFFFFF	#000000	##FFFFFF
##1B344A	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B354B

Deuteranopia (green-blind)

#24304A

Tritanopia (blue-blind)

#00393C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b344a;
/* rgb */ color: rgb(27, 52, 74);
/* oklch */ color: oklch(31.6% 0.050 246.8);

Tailwind

colors: {
  custom: {
    50: '#5c6b7c',
    500: '#1b344a',
    950: '#000000',
  },
}

SCSS

$custom: #1b344a;
$custom-light: #5c6b7c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b344a",
  "rgb": {
    "r": 27,
    "g": 52,
    "b": 74
  },
  "hsl": {
    "h": 208.085,
    "s": 46.535,
    "l": 19.804
  },
  "oklch": {
    "l": 0.31586,
    "c": 0.05041,
    "h": 246.8
  },
  "luminance": 0.03183
}

Semantic roles & 50–950 ramp

primary

#1B344A

secondary

#805E41

accent

#9052D6

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #1B344A

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

Preview Lab → · Contrast checker → · Palette generator →