#1B4B8A#1B4B8A

#1B4B8A is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.6% C 0.117 H 256.7°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B8A
RGB	rgb(27, 75, 138)
HSL	hsl(214, 67%, 32%)
HSV	hsv(214, 80%, 54%)
CMYK	cmyk(80.4%, 45.7%, 0%, 45.9%)
CIE-LAB	lab(32.03, 7.94, -39.67)
CIE-LCH	lch(32.03, 40.46, 281.31°)
OKLab	oklab(41.63% -0.0269 -0.1137)
OKLCH	oklch(41.63% 0.117 256.7)
XYZ	xyz(7.5538, 7.0993, 25.0120)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B8A #8A5A1B

analogous

#1B838A #1B4B8A #221B8A

triadic

#1B4B8A #8A1B4B #4B8A1B

tetradic

#1B4B8A #8A1B83 #8A5A1B #1B8A22

square

#1B4B8A #8A1B83 #8A5A1B #1B8A22

split-complementary

#1B4B8A #8A221B #838A1B

monochromatic

#071324 #112F57 #1B4B8A #2567BD #4586DB

Accessibility & contrast

On white

8.68

#1B4B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#1B4B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B8A

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B8A	#FFFFFF	#000000	##FFFFFF
##1B4B8A	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B518C

Deuteranopia (green-blind)

#134789

Tritanopia (blue-blind)

#005A63

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4b8a;
/* rgb */ color: rgb(27, 75, 138);
/* oklch */ color: oklch(41.6% 0.117 256.7);

Tailwind

colors: {
  custom: {
    50: '#6a7cac',
    500: '#1b4b8a',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b8a;
$custom-light: #6a7cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b8a",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 138
  },
  "hsl": {
    "h": 214.054,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.41627,
    "c": 0.11687,
    "h": 256.7
  },
  "luminance": 0.071
}

Semantic roles & 50–950 ramp

primary

#1B4B8A

secondary

#BC8845

accent

#A03EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4B8A

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

Preview Lab → · Contrast checker → · Palette generator →