#1B4A72#1B4A72

#1B4A72 is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.8% C 0.085 H 247.7°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A72
RGB	rgb(27, 74, 114)
HSL	hsl(208, 62%, 28%)
HSV	hsv(208, 76%, 45%)
CMYK	cmyk(76.3%, 35.1%, 0%, 55.3%)
CIE-LAB	lab(30.27, -1.04, -27.56)
CIE-LCH	lch(30.27, 27.58, 267.84°)
OKLab	oklab(39.78% -0.0321 -0.0782)
OKLCH	oklch(39.78% 0.085 247.7)
XYZ	xyz(5.9369, 6.3448, 16.8281)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A72 #72431B

analogous

#1B726E #1B4A72 #1B1F72

triadic

#1B4A72 #721B4A #4A721B

tetradic

#1B4A72 #6E1B72 #72431B #1F721B

square

#1B4A72 #6E1B72 #72431B #1F721B

split-complementary

#1B4A72 #721B1F #726E1B

monochromatic

#061019 #0F2A41 #1B4A72 #276AA3 #388AD0

Accessibility & contrast

On white

9.26

#1B4A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B4A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A72

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A72	#FFFFFF	#000000	##FFFFFF
##1B4A72	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384C74

Deuteranopia (green-blind)

#2B4471

Tritanopia (blue-blind)

#005458

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4a72;
/* rgb */ color: rgb(27, 74, 114);
/* oklch */ color: oklch(39.8% 0.085 247.7);

Tailwind

colors: {
  custom: {
    50: '#647c9b',
    500: '#1b4a72',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a72;
$custom-light: #647c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a72",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 114
  },
  "hsl": {
    "h": 207.586,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.39778,
    "c": 0.08457,
    "h": 247.7
  },
  "luminance": 0.06345
}

Semantic roles & 50–950 ramp

primary

#1B4A72

secondary

#A77042

accent

#8D43E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1B4A72

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

Preview Lab → · Contrast checker → · Palette generator →