Hi everyone,

I have some questions about the hex colors.

1.Assume that we have a 6 digits number which can be shortened into 3 digits. In what kind of situation, we better use the 3 digits instead of 6 digits?

Is 3 digits used for saving bytes? But in this case, will its maintainability reduce?

Is it always better to use 6 digits than 3 digits? (make the result more exact and easy to make small changes in the future?)

- I know that a 6 digits number whose number pairs are the same characters can be shortened into 3 digits one. But I still donâ€™t understand why we can omit the repetitive digits.

Thank you.

Sunny