How to Build a Multi-Color SVG Icon System
Structure multi-color SVG icons with semantic, reusable color tokens.
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Beyond currentColor
Single-color icons use currentColor easily, but multi-color icons (duotone, brand-colored illustrations) need each path assigned a semantic token like var(--icon-primary) and var(--icon-accent) for consistent theming.
- Assign each path a semantic color token
- var(--icon-primary)/var(--icon-accent) pattern works well
- Keep token names consistent across the whole icon set
Maintaining Consistency at Scale
Document your token naming convention and apply it uniformly when converting new artwork to SVG, so every new icon plugs into the same theme variables without one-off fixes.
- Document the token naming convention once
- Apply it to every newly converted icon
- Avoids one-off color overrides accumulating over time
Frequently Asked Questions
Why not just hardcode colors in a multi-color icon set?
Hardcoded colors make rebranding or dark-mode adaptation require editing every icon file; semantic tokens let you update the palette in one place.
How many color tokens does a typical icon system need?
Most systems get by with 2-4 tokens (primary, secondary, accent, neutral) reused consistently across the whole multi-color icon set.
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