Indicators and the different colour changes can get confusing. So, how do you remember them? Here are a few tricks that can help "indicate" the colour change:
Methyl orange - Imagine that you want to keep your oranges with Apples and bananas, and just recollect their colours!
For acidic solutions: Think of Phenolphthalein and Acid together. If you look at the word acid carefully you will find it has the letter c. C stands for colourless- so relate it to colour of phenolphthalein in acidic solutions.
For basic solutions: Did you know you can easily remember the colour of phenolphthalein in basic solutions by flipping the first letter P?
Litmus- Think of this and you will never fail to answer a question related to litmus:
Both Acid and Red end in 'd'
B for Base , B for Blue