Solar Duotone Icons
1,227 icon elements1,227 free two-tone icons from the Solar icon family. A semi-transparent fill layer behind crisp outlines creates natural depth and visual hierarchy. Open source under MIT license, delivered as SVG.
Duotone icons give you something that single-color icons cannot: built-in depth. The Solar Duotone set layers a semi-transparent fill behind a crisp outline on every one of its 1,227 free icons. That secondary layer does more than look nice. It creates visual hierarchy within the icon itself, making the foreground element pop while the background provides context.
How the two-tone system adds value
Consider a folder icon. In a standard outline, it is just a shape. In duotone, the folder body gets a subtle fill while the tab and contents remain as outlines. Your eye immediately understands which part is the container and which is the content. Multiply that across an entire interface and you get icons that communicate faster and more clearly than flat alternatives.
What is included
1,227 free duotone icons across all major UI categories
Semi-transparent fill layer with full-opacity outline layer
Single color input, two visual weights. Change one hex and both layers update
SVG files with properly separated opacity layers
Open source under the MIT license
Part of the Solar five-weight system
Where duotone shines brightest
Feature sections on marketing pages, where icons need to feel substantial without illustrations. Settings panels with many similar-looking options, where the depth helps differentiate at a glance. Navigation menus where you want selected items to feel richer than a simple color change. Pricing cards where feature icons should look polished, not like an afterthought.
For a simpler single-layer look, switch to Solar Linear Icons or Solar Outline Icons. For maximum weight, try Solar Bold Icons with 2,480 solid fills. All five Solar variants use identical naming, so mixing weights is trivial.
Adjust colors with our Free SVG Color Editor, and explore the full free collection on our Icon Packs page.
