RGB to Hex Converter

Free online RGB to Hex Converter that turns RGB color values into hex codes instantly for CSS and design.

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Set color levels (0-255) for red, green, and blue, and Use it:

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The RGB to Hex Converter turns red, green, and blue color values into a ready-to-use hex code in an instant — the fast, error-free way to move colors into CSS, design tools, and brand guidelines. Enter your RGB values, copy the matching #RRGGBB code, and keep designing.

Two Notations, One Color

RGB and hex are simply two ways of writing the same thing. RGB states how much red, green, and blue a color contains, each from 0 to 255. Hex packs those exact three numbers into a compact six-digit code. Designers move between them constantly, and converting by hand invites arithmetic mistakes — this tool makes the switch instant and exact.

How to Convert

  1. Enter your RGB values (red, green, blue, each 0–255).
  2. Convert to generate the hex code instantly.
  3. Copy the hex into your stylesheet or design tool.

How the Conversion Works

RGB channelValueHex pair
Red255FF
Green13688
Blue000

Each 0–255 value becomes a two-digit hexadecimal number, and the three pairs join into one code — here RGB(255, 136, 0) becomes #FF8800. Reading a hex code as three pairs (red, green, blue) lets you estimate a color at a glance.

Why Hex Rules the Web

Hex codes are compact and have been the standard color notation in CSS and HTML for decades. A single #RRGGBB string is trivial to copy, paste, and share, which is why brand guidelines and design handoffs almost always speak in hex. Converting your RGB picks to hex keeps your stylesheets clean and your team aligned.

Going Further: Alpha and Reverse

For solid colors, six-digit hex is all you need. When you want transparency, RGBA adds an alpha channel and the eight-digit #RRGGBBAA form encodes it. And because the relationship is fully reversible, you can split any hex code back into RGB whenever a tool or API expects numeric channels instead of a string.

Who Uses It

  • Web designers translating palettes into CSS.
  • Developers matching colors to a design spec.
  • Brand teams documenting exact color codes.
  • Anyone picking colors from an RGB source.

Accurate and Free

The conversion is mathematically exact, so the hex code is precisely the color you entered. Convert as many colors as you like, free and instantly, right in your browser.

Frequently Asked Questions

What is the difference between RGB and hex?

They describe the same color in different notations. RGB lists red, green, and blue intensities from 0 to 255, while hex encodes those same three values as a six-digit hexadecimal code like #FF8800. Browsers and design tools accept both.

How do I convert RGB to hex manually?

Convert each of the three values (0–255) to a two-digit hexadecimal number and join them. For example, RGB(255, 136, 0) becomes FF, 88, 00 → #FF8800. The calculator does this instantly and without arithmetic slips.

Why do web designers use hex codes?

Hex is compact and is the traditional way to specify colors in CSS and HTML. A single #RRGGBB string is easy to copy, share, and paste into stylesheets, design tools, and brand guidelines.

What does each pair in a hex code mean?

A six-digit hex code is three pairs: the first pair is red, the second green, the third blue, each from 00 (none) to FF (full). Reading it this way lets you eyeball roughly what color a code represents.

Can I convert hex back to RGB?

Yes, the relationship is reversible — split the hex into three pairs and convert each back to a 0–255 value. RGB is handy when a tool or API expects numeric channels rather than a hex string.

What about transparency or alpha?

Standard RGB-to-hex covers solid colors. For transparency, RGBA adds an alpha channel and the hex equivalent uses an eight-digit code (#RRGGBBAA). Use those formats when you need partial opacity.

Is the conversion accurate?

Yes. The math between RGB and hex is exact, so the converted code represents precisely the same color you entered with no approximation.

Is this tool free?

Yes — free, instant, and unlimited, with no signup.