#1B4A8A#1B4A8A

#1B4A8A is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.4% C 0.118 H 257.3°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A8A
RGB	rgb(27, 74, 138)
HSL	hsl(215, 67%, 32%)
HSV	hsv(215, 80%, 54%)
CMYK	cmyk(80.4%, 46.4%, 0%, 45.9%)
CIE-LAB	lab(31.73, 8.61, -40.16)
CIE-LCH	lch(31.73, 41.08, 282.10°)
OKLab	oklab(41.39% -0.026 -0.1152)
OKLCH	oklch(41.39% 0.118 257.3)
XYZ	xyz(7.4865, 6.9647, 24.9896)
Luminance	0.0697 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A8A #8A5B1B

analogous

#1B818A #1B4A8A #241B8A

triadic

#1B4A8A #8A1B4A #4A8A1B

tetradic

#1B4A8A #8A1B81 #8A5B1B #1B8A24

square

#1B4A8A #8A1B81 #8A5B1B #1B8A24

split-complementary

#1B4A8A #8A241B #818A1B

monochromatic

#071324 #112F57 #1B4A8A #2565BD #4584DB

Accessibility & contrast

On white

8.77

#1B4A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1B4A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A8A

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A8A	#FFFFFF	#000000	##FFFFFF
##1B4A8A	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28508C

Deuteranopia (green-blind)

#104689

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4a8a;
/* rgb */ color: rgb(27, 74, 138);
/* oklch */ color: oklch(41.4% 0.118 257.3);

Tailwind

colors: {
  custom: {
    50: '#6a7cac',
    500: '#1b4a8a',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a8a;
$custom-light: #6a7cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a8a",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 138
  },
  "hsl": {
    "h": 214.595,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.41391,
    "c": 0.1181,
    "h": 257.3
  },
  "luminance": 0.06966
}

Semantic roles & 50–950 ramp

primary

#1B4A8A

secondary

#BC8A45

accent

#A13EEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4A8A

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

Preview Lab → · Contrast checker → · Palette generator →