The idiom "show one's true colors" means to reveal one's real character or intentions, especially when they have been hiding them or pretending to be someone else.
For example, if someone pretends to be friendly and helpful but then behaves selfishly or cruelly, you could say that they have shown their true colors.
This idiom can be used in various situations, such as in personal relationships, politics, or business. It is often used to describe someone who has been pretending to be something they are not, and then their true nature is revealed.
In simple terms, it means that someone has shown their real personality or intentions, which may be different from what they have been pretending to be.
• The company CEO tried to hide his greed, but he showed his true colors when he embezzled millions of dollars from the company.
• After years of pretending to be a loving husband, he finally showed his true colors when he was caught cheating on his wife.
• The politician promised to make changes, but he showed his true colors when he failed to keep his promises.
• I thought he was a honest person, but he showed his true colors when he cheated on the exam.
• The new employee seemed friendly, but she showed her true colors when she started gossiping about her colleagues.
• She pretended to be nice, but when she didn't get what she wanted, she showed her true colors.