#1C4D8A#1C4D8A

#1C4D8A is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.1% C 0.114 H 255.8°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#1C4D8A
RGB	rgb(28, 77, 138)
HSL	hsl(213, 66%, 33%)
HSV	hsv(213, 80%, 54%)
CMYK	cmyk(79.7%, 44.2%, 0%, 45.9%)
CIE-LAB	lab(32.68, 6.71, -38.64)
CIE-LCH	lch(32.68, 39.22, 279.85°)
OKLab	oklab(42.14% -0.0281 -0.1106)
OKLCH	oklch(42.14% 0.114 255.8)
XYZ	xyz(7.7185, 7.3887, 25.0592)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4D8A #8A591C

analogous

#1C848A #1C4D8A #221C8A

triadic

#1C4D8A #8A1C4D #4D8A1C

tetradic

#1C4D8A #8A1C84 #8A591C #1C8A22

square

#1C4D8A #8A1C84 #8A591C #1C8A22

split-complementary

#1C4D8A #8A221C #848A1C

monochromatic

#071424 #123157 #1C4D8A #2669BD #4788DA

Accessibility & contrast

On white

8.47

#1C4D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1C4D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4D8A

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4D8A	#FFFFFF	#000000	##FFFFFF
##1C4D8A	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E528C

Deuteranopia (green-blind)

#1A4889

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c4d8a;
/* rgb */ color: rgb(28, 77, 138);
/* oklch */ color: oklch(42.1% 0.114 255.8);

Tailwind

colors: {
  custom: {
    50: '#6a7eac',
    500: '#1c4d8a',
    950: '#000000',
  },
}

SCSS

$custom: #1c4d8a;
$custom-light: #6a7eac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4d8a",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 138
  },
  "hsl": {
    "h": 213.273,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.42135,
    "c": 0.11415,
    "h": 255.8
  },
  "luminance": 0.0739
}

Semantic roles & 50–950 ramp

primary

#1C4D8A

secondary

#BB8746

accent

#9D3FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1C4D8A

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

Preview Lab → · Contrast checker → · Palette generator →