How many colors should a React UI use?
A small set: brand colors and semantic colors like success and error. Limiting the palette prevents the rainbow look of an uncontrolled UI. Define them as tokens and use those tokens consistently.
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More FAQs in Design Consistency Best Practices for React UIs
Use a token system for colors, spacing, and typography, build reusable primitives, keep spacing consistent with a fixed scale, limit the color palette, define a clear typography hierarchy, and reuse layout patterns across similar features.
Defined values for colors, spacing, typography, and radii, kept in one place like a Tailwind config or CSS variables. Using tokens consistently keeps the UI consistent, instead of arbitrary values scattered across components.
Because reusing Button, Card, and Input means every instance uses the same styling. This keeps the UI consistent, since you are not re-styling the same element differently across the app.
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