- Overuse of bright colors: While bright colors can grab attention, using them excessively can make your email look chaotic and unprofessional. - Ignoring brand colors: Failing to use your brand’s colors can reduce brand recognition and make your emails less cohesive. - Poor contrast: Using colors that do not provide enough contrast between text and background can make your content hard to read. - Inconsistent color scheme: Using too many different colors can confuse readers and detract from your message.