What Do You Look for in a Color Theory and Color Picker Tool?

When working on web design, branding, or UI projects, choosing the right colors can take more time than expected.

Some designers rely heavily on color theory principles, while others prefer experimenting with different combinations until they find something that feels right. Color wheels, palette generators, and color pickers have made the process easier, but everyone seems to have a different workflow.

I'm curious:

Do you use color theory when selecting colors?
Which color picker features are most important to you?
How do you build consistent color palettes for projects?
Do you prefer simple tools or all-in-one color suites?

I'd love to hear about the tools, techniques, and workflows you use when creating color systems for websites, apps, or branding projects.