Hexadecimal refers to a Base-16 numbering system. We’ve all heard of Binary (ones and zeroes baby!), and we use the Base-10 (decimal) numbering system normally. One can express any number in any system.
With a Base-16 numbering system we run out of our familiar “numbers” and start using letters (A thru F).
Hex “numbers”: 0 1 2 3 4 5 6 7 8 9 A(10) B(11) C(12) D(13) E(14) F(15)
With just two digits of hex we can express decimal values 0-255, so think of it as a kind of shorthand.
RGB values are expressed in numbers ranging from 0 to 255 for each color (hey, didn’t I just see that somewhere…?)
Hex colors are RGB colors, just expressed with a different numbering system. NK’s standard practice is to spec color in both numbering systems – to ensure our clients have the right digital language at their fingertips. Read more here or contact us today!