Using Mnemonic Devices Involving Letters

[1] VIBGYOR

[2]  Try to remember the name of an imaginary person called Roy G. Biv. The letters break down like this:

       R stands for Red

• O stands for Orange
• Y stands for Yellow
• G stands for Green
• B stands for Blue
• I stands for Indigo
• V stands for Violet.

[3] If you struggle to remember Roy G. Biv, try remembering the sentence "Richard Of York Gave Battle In Vain." The first letter of each word in the sentence corresponds to a color of a rainbow. 

red anf th teyellow sorry fero my typoing burt i dont reallt know the answer t0 that