#1B4E7C#1B4E7C

#1B4E7C is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.4% C 0.094 H 249.3°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E7C
RGB	rgb(27, 78, 124)
HSL	hsl(208, 64%, 30%)
HSV	hsv(208, 78%, 49%)
CMYK	cmyk(78.2%, 37.1%, 0%, 51.4%)
CIE-LAB	lab(32.12, 0.31, -30.89)
CIE-LCH	lch(32.12, 30.89, 270.57°)
OKLab	oklab(41.41% -0.0332 -0.0879)
OKLCH	oklch(41.41% 0.094 249.3)
XYZ	xyz(6.8131, 7.1362, 20.0832)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E7C #7C491B

analogous

#1B7C7A #1B4E7C #1B1D7C

triadic

#1B4E7C #7C1B4E #4E7C1B

tetradic

#1B4E7C #7A1B7C #7C491B #1D7C1B

square

#1B4E7C #7A1B7C #7C491B #1D7C1B

split-complementary

#1B4E7C #7C1B1D #7C7A1B

monochromatic

#051019 #102E4A #1B4E7C #266EAE #3D8DD5

Accessibility & contrast

On white

8.65

#1B4E7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B4E7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E7C

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E7C	#FFFFFF	#000000	##FFFFFF
##1B4E7C	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39507E

Deuteranopia (green-blind)

#2A477B

Tritanopia (blue-blind)

#00595F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4e7c;
/* rgb */ color: rgb(27, 78, 124);
/* oklch */ color: oklch(41.4% 0.094 249.3);

Tailwind

colors: {
  custom: {
    50: '#667fa2',
    500: '#1b4e7c',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e7c;
$custom-light: #667fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e7c",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 124
  },
  "hsl": {
    "h": 208.454,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.41414,
    "c": 0.09396,
    "h": 249.3
  },
  "luminance": 0.07137
}

Semantic roles & 50–950 ramp

primary

#1B4E7C

secondary

#B07743

accent

#9041E7

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1B4E7C

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

Preview Lab → · Contrast checker → · Palette generator →