Blue Color Hex Code, RGB & HSL Values

What is the meaning of the Blue color?

Blue is a primary color representing calm, stability, and trust. It is the most popular color for corporate branding and technology companies (like Facebook and IBM) because it conveys professionalism and reliability without being aggressive. Pure blue (#0000FF) is highly vibrant and acts as a standard anchor color in digital design.

How to use the Blue color hex code in HTML & CSS?

To style elements with Blue on a website, use the hex code #0000FF in your HTML/CSS. Adding background-color: #0000FF; will render the color. In Tailwind CSS, you can apply this shade dynamically using classes like bg-[#0000FF] or configuring it as a color variable in your configuration file.

What are the RGB and HSL codes of Blue?

In the digital sRGB spectrum, the Blue color code is mapped to RGB values of Red: 0, Green: 0, and Blue: 255. In the HSL system, it registers at hue angle 240°, saturation 100%, and lightness index 50%. It represents a balanced medium tone characterized by a highly vivid, intense, and brilliant shade.

CMYK print profiles for Blue color

To reproduce the named shade Blue in print systems, the CMYK ink configuration requires 100% Cyan, 100% Magenta, 0% Yellow, and 0% black. In digital designs, blue coordinates like this are highly favored by technical and corporate platforms to foster user trust, stability, and clean readability.

Red Channel 0

Green Channel 0

Blue Channel 255

Luminance 0.072

⇄ Blue Color Space Conversions

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HEX Color Code #0000FF

RGB (Red Green Blue) rgb(0, 0, 255)

HSL (Hue Sat Light) hsl(240°, 100%, 50%)

CMYK (Commercial Print) cmyk(100%, 100%, 0%, 0%)

HSV / HSB Values hsv(240°, 100%, 100%)

Decimal Color Code 255

CSS Custom Variable --color-hex: #0000FF;

Tailwind CSS Utility bg-[#0000FF]

CSS Named Color blue

◎ Contrast & Accessibility (WCAG 2.1) Check

White Text on Background

White text readability test with #0000FF

Small body copy preview

Black Text on Background

Black text readability test with #0000FF

Small body copy preview

◈ Complementary & Analogous Harmonies

Computed dynamically

▤ Shades & Tints Generator Matrix

Copy shade hex values instantly

Darker Shades (Adding Black)

Lighter Tints (Adding White)

{ } CSS Custom Properties (Variables)

Copy CSS Styles

/* CSS Custom Properties for Blue */
--color-hex: #0000FF;
--color-rgb: rgb(0, 0, 255);
--color-hsl: hsl(240deg, 100%, 50%);
--color-name: blue;

Aa Known Color Aliases

✦ Blue Color Meaning

In design psychology, Blue is classified as a blue shade, inheriting its psychological associations. The blue hue is the most popular color worldwide, chosen by more people across genders and cultures than any other hue. Psychologically, blue creates feelings of trust, reliability, and calm. It lowers blood pressure and heart rate, making it the premier color in healthcare, finance, and technology. Dark blues like navy communicate authority and professionalism, while lighter blues suggest openness and freedom. The sky and ocean — two of humanity's most expansive visual experiences — are blue, giving the color an intrinsic association with infinite depth and possibility. Fortune 500 companies choose blue more than any other color precisely for its trust-building properties.

Emotions & Associations

DepthProfessionalismReliabilitySerenity

Industries

AviationGovernmentHealthcare