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Blue

#0004FF

Blue is a cool medium color with the hex code #0004FF. This vibrant hue can be represented as RGB 0, 4, 255 in digital design or CMYK 100%, 98%, 0%, 0% for print applications. Find matching Pantone color.

Blue color values

HEX
#0004FF
RGB
0, 4, 255
HSL
239°, 100%, 50%
CMYK
100, 98, 0, 0

Shades & tints

Darker Lighter

About this color

Blue sits at 239° on the color wheel with 100% saturation and 50% lightness, placing it in the blue segment of the spectrum. With saturation at 100%, this is a high-chroma color: the kind that anchors palettes and demands considered placement. Its mid-range lightness positions it as a mid-tone: neither a background color nor a deep accent, but something in between.

In digital environments, Blue is rendered as rgb(0, 4, 255), where the blue channel is highest at 255, producing a strongly blue character. The mid-range lightness and strong saturation make this versatile for both foreground and background roles, depending on what it is paired against.

For print, Blue translates to a CMYK breakdown of 100C 98M 0Y 0K. With almost no black ink (0%), this color is built almost entirely from process inks: 100% cyan, 98% magenta. This profile tends toward vibrancy in print, though ink density limits on press may affect saturation on coated versus uncoated stock. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

Color harmonies

Complementary

Split-Complementary

How to use Blue

CSS Variable 

:root {
  --brand-primary: #0004FF;
  --brand-primary-rgb: 0, 4, 255;
}

Define as a CSS custom property for consistent theming across your site.

Tailwind Config 

colors: {
  brand: '#0004FF',
}

Add to your Tailwind config to use classes like bg-brand.

Print Design (CMYK) 

C: 100%
M: 98%
Y: 0%
K: 0%

Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.

RGB for Screens 

rgb(0, 4, 255)
rgba(0, 4, 255, 0.8)

Use RGB notation for compatibility or add alpha channel for transparency.

Brands using similar hue

24 brand s with colors near 239° on the color wheel

Revolut logo
Revolut
Visa logo
Visa
Warner Bros. logo
Warner Bros.
Discord logo
Discord

Frequently asked questions

What color is #0004FF?
#0004FF is Blue, a cool medium color with RGB values of 0, 4, 255. It has a hue of 239°, 100% saturation, and 50% lightness in the HSL color space.
What is the RGB value of #0004FF?
The RGB color code for #0004FF is rgb(0, 4, 255). This means it contains 0 red, 4 green, and 255 blue in the RGB color model.
Is Blue a warm or cool color?
Blue (#0004FF) is a cool color with a hue between 120-300° on the color wheel.
How do I use #0004FF in CSS?
You can use #0004FF in CSS with: background-color: #0004FF; or color: #0004FF; or as an RGB value: rgb(0, 4, 255). For print design, use CMYK: 100%, 98%, 0%, 0%.

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