ガイド
Webデザインでよくあるカラーピッカーの失敗
色の不一致や保守性低下を招く典型的なミスを防ぎます。
カラーピッカーは便利ですが、運用ミスでUI品質が下がることがあります。
Mistake: picking by eye only
Visual guesses drift over time, especially across displays.
Always copy numeric values and compare them directly.
Mistake: ignoring format consistency
Mixed HEX/RGB/HSL usage without a rule creates confusion.
Set a preferred format for commits and documentation.
Mistake: skipping context checks
A color can look fine in a swatch but fail in real UI states.
Test contrast, hover states, and adjacent surfaces before shipping.
- Test text readability.
- Check light and dark backgrounds.
- Review disabled and active states.
Mistake: hardcoding values everywhere
Repeated literals are difficult to update later.
Use tokens or variables so changes remain centralized.
Common issues appear in
- Rapid landing page edits.
- Theme updates.
- Design-to-code handoff.
Small checks prevent big cleanup
A few validation steps keep your color system cleaner and easier to maintain.