#1B445E#1B445E

#1B445E is a dark, moderate cyan. Relative luminance 0.052; OKLCH L 37.0% C 0.064 H 239.6°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B445E
RGB	rgb(27, 68, 94)
HSL	hsl(203, 55%, 24%)
HSV	hsv(203, 71%, 37%)
CMYK	cmyk(71.3%, 27.7%, 0%, 63.1%)
CIE-LAB	lab(27.23, -4.93, -19.59)
CIE-LCH	lch(27.23, 20.20, 255.88°)
OKLab	oklab(37.03% -0.0323 -0.0551)
OKLCH	oklch(37.03% 0.064 239.6)
XYZ	xyz(4.5387, 5.1749, 11.3472)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B445E #5E351B

analogous

#1B5E56 #1B445E #1B225E

triadic

#1B445E #5E1B44 #445E1B

tetradic

#1B445E #561B5E #5E351B #225E1B

square

#1B445E #561B5E #5E351B #225E1B

split-complementary

#1B445E #5E1B22 #5E561B

monochromatic

#071118 #0D222E #1B445E #29668E #3689BD

Accessibility & contrast

On white

10.32

#1B445E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1B445E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B445E

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B445E	#FFFFFF	#000000	##FFFFFF
##1B445E	1.00	10.32	2.04	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38445F

Deuteranopia (green-blind)

#2F3D5E

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1b445e;
/* rgb */ color: rgb(27, 68, 94);
/* oklch */ color: oklch(37.0% 0.064 239.6);

Tailwind

colors: {
  custom: {
    50: '#60778b',
    500: '#1b445e',
    950: '#000000',
  },
}

SCSS

$custom: #1b445e;
$custom-light: #60778b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b445e",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 94
  },
  "hsl": {
    "h": 203.284,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.37032,
    "c": 0.06391,
    "h": 239.6
  },
  "luminance": 0.05175
}

Semantic roles & 50–950 ramp

primary

#1B445E

secondary

#946141

accent

#8349DF

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #1B445E

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

Preview Lab → · Contrast checker → · Palette generator →