RGB to HEX Converter
Convert RGB channel values (0-255) into standard hexadecimal color codes with uppercase, lowercase, and formatted RGB notation.
Run tool
This RGB to HEX converter transforms red, green, and blue color coordinates into standard web color formats. Enter individual color channels as numbers between 0 and 255. If you leave inputs blank, the tool defaults to 255 for red, 0 for green, and 0 for blue, producing pure red.
Each provided channel is converted to an integer and clamped to the valid range between 0 and 255. The tool generates standard lowercase hexadecimal strings starting with a hash symbol, alongside uppercase hexadecimal formatting. It also provides comma-separated and space-separated RGB text strings for straightforward integration across stylesheets, graphic design software, and digital layout specifications.
If you enter an invalid text string or unsupported characters that cannot be evaluated as an integer, the tool flags the issue directly in the output panel so you can adjust the values. You can quickly copy the resulting hex code or formatted color notation for use in CSS rules, user interface mockups, or theme palettes.
Instructions
- Enter the red (R), green (G), and blue (B) color channel values in the designated fields.
- Leave any field blank to use default values (255 for red, 0 for green, 0 for blue).
- Run the converter to calculate the corresponding hex codes.
- Copy the lowercase or uppercase hexadecimal color string, or copy the formatted RGB strings.
Examples
- Converting pure red: Enter R = 255, G = 0, B = 0 to obtain #ff0000 (#FF0000, rgb(255, 0, 0)).
- Converting royal blue: Enter R = 65, G = 105, B = 225 to receive #4169e1 (#4169E1, rgb(65, 105, 225)).
- Clamping out-of-range inputs: Entering R = 300, G = -10, B = 128 clamps red to 255 and green to 0, outputting #ff0080.
FAQ
What default values are used when fields are left empty?
Red defaults to 255, while green and blue default to 0, yielding the hex code #ff0000.
What happens if I enter numbers outside the 0 to 255 range?
Values below 0 are clamped to 0, and values above 255 are clamped to 255 before conversion.
Which hex format does the tool provide?
The tool generates standard six-character hexadecimal codes prefixed with # in both lowercase and uppercase, alongside comma-separated and space-separated RGB representations.
What happens if I enter non-numeric text?
If an input cannot be converted to a whole number, the output area indicates that the channel value is invalid.