#1B446B#1B446B

#1B446B is a dark, moderate cyan. Relative luminance 0.054; OKLCH L 37.8% C 0.081 H 249.9°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B446B
RGB	rgb(27, 68, 107)
HSL	hsl(209, 60%, 26%)
HSV	hsv(209, 75%, 42%)
CMYK	cmyk(74.8%, 36.4%, 0%, 58%)
CIE-LAB	lab(27.92, 0.15, -26.83)
CIE-LCH	lch(27.92, 26.83, 270.33°)
OKLab	oklab(37.81% -0.0279 -0.0762)
OKLCH	oklch(37.81% 0.081 249.9)
XYZ	xyz(5.1720, 5.4282, 14.6822)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B446B #6B421B

analogous

#1B6B6A #1B446B #1B1C6B

triadic

#1B446B #6B1B44 #446B1B

tetradic

#1B446B #6A1B6B #6B421B #1C6B1B

square

#1B446B #6A1B6B #6B421B #1C6B1B

split-complementary

#1B446B #6B1B1C #6B6A1B

monochromatic

#061018 #0F253A #1B446B #27639C #3582CC

Accessibility & contrast

On white

10.07

#1B446B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1B446B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B446B

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B446B	#FFFFFF	#000000	##FFFFFF
##1B446B	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32466D

Deuteranopia (green-blind)

#273E6A

Tritanopia (blue-blind)

#004D52

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b446b;
/* rgb */ color: rgb(27, 68, 107);
/* oklch */ color: oklch(37.8% 0.081 249.9);

Tailwind

colors: {
  custom: {
    50: '#637795',
    500: '#1b446b',
    950: '#000000',
  },
}

SCSS

$custom: #1b446b;
$custom-light: #637795;
$custom-dark: #000000;

JSON

{
  "hex": "#1b446b",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 107
  },
  "hsl": {
    "h": 209.25,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.37807,
    "c": 0.08113,
    "h": 249.9
  },
  "luminance": 0.05429
}

Semantic roles & 50–950 ramp

primary

#1B446B

secondary

#A07042

accent

#9245E3

background

#F6F7F9

surface

#EBEDF1

border

#C6C8CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1B446B

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

Preview Lab → · Contrast checker → · Palette generator →