## Hexidecimal just means base 16
```
A = 10
B = 11
C = 12
D = 13
E = 14
F = 15
10 = 16
```
Hex color codes are just RGB numbers converted to hexidecimal (and thus 2 digits) and then crammed next to each other
Convert rgb(200, 155, 30) to hex:
200/16 = 12.5 or 12R8 so 200 -> C8
155/16 = 9.6875 or 9R11 so 155 -> 9B
30/16 = 1.875 or 1R14 so 30 -> 1E
Therefore rgb(200, 155, 30) = #C89B1E
### YOU CAN DO RGBA IN HEX
Just add 2 more digits on the end for the opacity. 0 = 0% opacity and FF = 100% opacity :)