Enter red, green and blue color levels (0-255) and press the Convert button:
RGB means Red Green Blue, ie the primary colors in additive color synthesis. A RGB file consists in composite layers of Red, Gree and Blue, each being coded on 256 levels from 0 to 255. For example, black corresponds to the levels R=0, G=0, B=0, and white corresponds to the levels R=255, G=255, B=255.
A HEX color is expressed as a six-digit combination of numbers and letters defined by its mix of red, green and blue (RGB). Basically, a HEX color code is shorthand for its RGB values with a little conversion gymnastics in between. ... Simply search, “RGB to HEX” to find one you're comfortable with.