ガイド
UIに使う前に色の組み合わせを確認する方法
実装前に配色ペアを手早く検証し、読みやすさと一貫性を保つための手順です。
単体では良く見える色でも、実際のUIでは読みにくくなることがあります。事前チェックで手戻りを減らせます。
Test the exact foreground-background pair
Always evaluate colors as a pair, not as separate swatches.
The same text color can pass on one background and fail on another.
Preview combinations in real components
Check buttons, badges, cards, and form hints using the real color pairing.
This shows whether hierarchy and readability still hold.
Check multiple UI states early
Do not validate only the default state.
- Default
- Hover/focus
- Disabled or subtle state
Compare with nearby colors in the same screen
A pair can be readable but still look disconnected from surrounding UI colors.
Quickly compare it against adjacent elements before finalizing.
Save approved combinations as reusable tokens
Once approved, store the pair in your style guide or token set.
This prevents accidental drift when new screens are added.
When to run this check
- Before shipping new button or alert styles.
- Before adopting brand colors in body text or labels.
- During final QA for a redesign.
Check combinations before they become expensive
A few minutes of color validation before implementation is faster than fixing inconsistent UI after release.