Colour by numbers

Did you know that all the colours you see on a computer screen are represented by hexadecimal code? Find out how this code works and use it to colour by numbers.

Notebook computer displaying coloured numbers

Explore

Work through this Binary numbers (.pptx 324kB) resource to learn how to convert decimal numbers to binary.

Your tasks

Spreadsheet icon

Make your own decimal to binary conversion calculator.

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Convert decimal numbers into hexadecimal by making your conversion calculator work harder.

Computer Icon

Explore how hexadecimal is used to generate colour.

Syllabus links | Teaching notes