Claude Code has a frontend-design skill turned into a plugin that helps you to move away from "generic" design solutions with typical AI colors like purple.

Here's a longer tutorial from Claude Code themselves: Improving frontend design through Skills
To get started, add the official marketplace in Claude Code:
/plugin marketplace add anthropics/claude-code
and then install the plugin:
/plugin install frontend-design@claude-code-plugins
And then just write a prompt, mentioning "use frontend design skill" or something similar.
I also have a 6-minute YouTube video where I demonstrate this skill in action: