In Python, colours can be represented in a number of ways: as the colour name (a string), as a hexadecimal number (string preceded with "#"), and as RGB values (a sequence of 3 integers in the range 0 to 255 inclusive, each representing one of (R)ed, (G)reen and (B)lue).

Consider the following Python data structure, which contains data representing the name, hexadecimal value and RGB values of some colours:

Complete the following code to produce a list of all the hexadecimal string values in the list colours. (e.g., [ '#000000', '#FFFFFF' ...])

hex_pallette = [] for ( The answer here): hex_pallette.append (The answer here)