#1C4E9A#1C4E9A

#1C4E9A is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.5% C 0.135 H 259.0°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E9A
RGB	rgb(28, 78, 154)
HSL	hsl(216, 69%, 36%)
HSV	hsv(216, 82%, 60%)
CMYK	cmyk(81.8%, 49.4%, 0%, 39.6%)
CIE-LAB	lab(34.04, 12.49, -46.19)
CIE-LCH	lch(34.04, 47.85, 285.13°)
OKLab	oklab(43.53% -0.0259 -0.1328)
OKLCH	oklch(43.53% 0.135 259)
XYZ	xyz(9.0339, 8.0277, 31.6390)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E9A #9A681C

analogous

#1C8D9A #1C4E9A #291C9A

triadic

#1C4E9A #9A1C4E #4E9A1C

tetradic

#1C4E9A #9A1C8D #9A681C #1C9A29

square

#1C4E9A #9A1C8D #9A681C #1C9A29

split-complementary

#1C4E9A #9A291C #8D9A1C

monochromatic

#091A32 #133466 #1C4E9A #2568CE #518ADF

Accessibility & contrast

On white

8.06

#1C4E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#1C4E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E9A

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E9A	#FFFFFF	#000000	##FFFFFF
##1C4E9A	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22569D

Deuteranopia (green-blind)

#004B98

Tritanopia (blue-blind)

#00606C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c4e9a;
/* rgb */ color: rgb(28, 78, 154);
/* oklch */ color: oklch(43.5% 0.135 259.0);

Tailwind

colors: {
  custom: {
    50: '#6e7eb8',
    500: '#1c4e9a',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e9a;
$custom-light: #6e7eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e9a",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 154
  },
  "hsl": {
    "h": 216.19,
    "s": 69.231,
    "l": 35.686
  },
  "oklch": {
    "l": 0.4353,
    "c": 0.13534,
    "h": 259
  },
  "luminance": 0.08029
}

Semantic roles & 50–950 ramp

primary

#1C4E9A

secondary

#C29550

accent

#A63CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1C4E9A

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

Preview Lab → · Contrast checker → · Palette generator →