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Convert RGB and HEX color codes online. Get accurate color conversions for designers and developers.
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In web design or coding, manually converting one color representation (like RGB) to another (like HEX) is time-consuming and prone to errors. This tool is designed to solve that exact problem by instantly performing two-way conversions between RGB color values and hexadecimal (HEX) color codes. RGB is an additive color model based on the primary colors red, green, and blue, with each component represented by a decimal integer between 0 and 255. HEX uses a 6-digit hexadecimal number (e.g., #FF0000) to represent RGB values and is the standard color format in web development. The tool automatically detects your input and outputs the corresponding format in real time.
Q: What are the format requirements for RGB input?
A: The tool supports two mainstream formats: the complete format with parentheses "rgb(255, 0, 0)" and the simplified format without parentheses "255, 0, 0". Please ensure the three numbers are separated by commas and each value is between 0 and 255.
Q: Is there a difference between uppercase and lowercase HEX codes?
A: No. In the context of color conversion, HEX codes are case-insensitive. #ff0000 and #FF0000 represent the exact same red. However, uppercase is typically used in web development for consistent code styling.
Please ensure your RGB input values are within the valid range of 0 to 255; values outside this range cannot be converted correctly. This tool processes standard RGB and HEX formats and does not support other color models like RGBA (with alpha/transparency) or HSL. All conversions are performed locally in your browser in real time. Your color data is never uploaded to a server, ensuring complete privacy.
For frontend developers, mastering RGB to HEX conversion helps speed up CSS debugging. A practical tip is to memorize the relationships of a few key values for quick mental math. For example, decimal 255 corresponds to hexadecimal FF, and decimal 0 corresponds to 00. Therefore, pure red rgb(255,0,0) is #FF0000, pure green rgb(0,255,0) is #00FF00, and pure blue rgb(0,0,255) is #0000FF. When you encounter a gray like rgb(128,128,128), you can quickly deduce its HEX value should be #808080.
