#1B3449#1B3449

#1B3449 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.5% C 0.049 H 245.6°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B3449
RGB	rgb(27, 52, 73)
HSL	hsl(207, 46%, 20%)
HSV	hsv(207, 63%, 29%)
CMYK	cmyk(63%, 28.8%, 0%, 71.4%)
CIE-LAB	lab(20.71, -2.32, -15.91)
CIE-LCH	lch(20.71, 16.07, 261.69°)
OKLab	oklab(31.53% -0.0203 -0.0446)
OKLCH	oklch(31.53% 0.049 245.6)
XYZ	xyz(2.8821, 3.1698, 6.7620)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3449 #49301B

analogous

#1B4947 #1B3449 #1B1D49

triadic

#1B3449 #491B34 #34491B

tetradic

#1B3449 #471B49 #49301B #1D491B

square

#1B3449 #471B49 #49301B #1D491B

split-complementary

#1B3449 #491B1D #49471B

monochromatic

#081016 #0A141C #1B3449 #2C5476 #3C74A2

Accessibility & contrast

On white

12.85

#1B3449 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1B3449 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3449

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3449	#FFFFFF	#000000	##FFFFFF
##1B3449	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B344A

Deuteranopia (green-blind)

#253049

Tritanopia (blue-blind)

#00393B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b3449;
/* rgb */ color: rgb(27, 52, 73);
/* oklch */ color: oklch(31.5% 0.049 245.6);

Tailwind

colors: {
  custom: {
    50: '#5c6b7b',
    500: '#1b3449',
    950: '#000000',
  },
}

SCSS

$custom: #1b3449;
$custom-light: #5c6b7b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3449",
  "rgb": {
    "r": 27,
    "g": 52,
    "b": 73
  },
  "hsl": {
    "h": 207.391,
    "s": 46,
    "l": 19.608
  },
  "oklch": {
    "l": 0.31529,
    "c": 0.049,
    "h": 245.6
  },
  "luminance": 0.0317
}

Semantic roles & 50–950 ramp

primary

#1B3449

secondary

#7F5D41

accent

#8E52D6

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #1B3449

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

Preview Lab → · Contrast checker → · Palette generator →