--- title: "Core Flat Icons Set - 5837 customizable PNGs, SVGs, PDFs" product: "Streamline Icons, Illustrations and Elements" url: /icons/core-flat canonical_url: "https://www.streamlinehq.com/icons/core-flat" summary: "Core's illustrative sub-style — solid flat two-tone blue fills on rounded silhouettes, suited to onboarding flows, feature explainers, and educational content at display sizes (32px+). The controlled two-tone blue tonal system is neither warm nor cold, neither schematic nor expressive, producing a diagrammatic quality that communicates \"we illustrate without illustrating.\" The tone is informational and calm: functional illustration rather than brand storytelling. Best for illustrative onboarding, help and documentation feature explainers, and products with a two-tone blue brand palette that need display-size icon weight without the full expressiveness of gradient fills." --- # Core Flat Core's illustrative sub-style — solid flat two-tone blue fills on rounded silhouettes, suited to onboarding flows, feature explainers, and educational content at display sizes (32px+). The controlled two-tone blue tonal system is neither warm nor cold, neither schematic nor expressive, producing a diagrammatic quality that communicates "we illustrate without illustrating." The tone is informational and calm: functional illustration rather than brand storytelling. Best for illustrative onboarding, help and documentation feature explainers, and products with a two-tone blue brand palette that need display-size icon weight without the full expressiveness of gradient fills. License: Commercial ## Fit & Recommendation ### Primary use cases - Illustrative onboarding flows and product tours - Feature explainer graphics in help and documentation - Marketing sections where icons carry visual weight at display sizes (32px+) - Products with a two-tone blue brand palette - Educational platforms and tools --- ## Visual & Technical Specs ### Visual properties | Property | Value | |----------|-------| | Stroke weight | None | | Fill | Solid flat fills, two-tone | | Corner treatment | Rounded silhouettes | | Color | Two-color: dark blue + light blue tonal | ### Emotional Scores Core Flat is near neutral on warmth — the dark blue and light blue tonal system is controlled and reads as neither warm nor cold. It is near neutral on softness — the flat fills add visual weight while the rounded silhouettes offset it, producing a genuine midpoint. It is somewhat friendly — the two-tone blue is more neutral-professional than its Sharp equivalent, landing just on the warmer side of the midpoint. It is near neutral on playfulness — flat fills in a tonal system read as diagrammatic rather than expressive or severe. On its human↔mechanical character, it is somewhat mechanical — the flat geometric fills read as schematic, though rounded silhouettes reduce this quality slightly. --- ## Pairing & Compatibility ### Typography pairing - **Primary**: Inter or DM Sans — the two-tone blue tonal system is neutral enough that the standard humanist sans pairings work cleanly - **Alternative**: Outfit — slightly warmer, appropriate if Flat is being used in more illustrative consumer contexts - **Avoid**: Expressive display or decorative fonts — they compete with the flat fills ## Categories - [Interface Essential](/icons/core-flat/interface-essential) - [Business](/icons/core-flat/business) - [Images Photography](/icons/core-flat/images-photography) - [Money Shopping](/icons/core-flat/money-shopping) - [Programming](/icons/core-flat/programming) - [Computer Devices](/icons/core-flat/computer-devices) - [Phone](/icons/core-flat/phone) - [Mail](/icons/core-flat/mail) - [Map Travel](/icons/core-flat/map-travel) - [Food Drink](/icons/core-flat/food-drink) - [Nature Ecology](/icons/core-flat/nature-ecology) - [Entertainment](/icons/core-flat/entertainment) - [Shipping](/icons/core-flat/shipping) - [Culture](/icons/core-flat/culture) - [Health](/icons/core-flat/health) - [Work Education](/icons/core-flat/work-education) - [Artificial Intelligence](/icons/core-flat/artificial-intelligence) - [Arrows](/icons/core-flat/arrows) ## Example icons - [3d Perspective Grid](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/3d-perspective-grid-oy2i8dhel9aizvaxo8gpln.png/3d-perspective-grid-9h7310xfdqrf5oxe39nktv.png?_a=DATAiZkSZAA0) - [Apply To All](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/apply-to-all-fw4l4lag0ae5i7f1pdg94.png/apply-to-all-dc8dz6hw1oeqht6d6lc7w8.png?_a=DATAiZkSZAA0) - [Attach File Add](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/attach-file-add-fjbv5ct0tesmrfaqjlkgr.png/attach-file-add-vwjtxavkzzj6bz05x37ul.png?_a=DATAiZkSZAA0) - [Attach File Off](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/attach-file-off-a2npknlvgugntagyzyz59.png/attach-file-off-h0cnjr6g08vovg2g4qwlw8.png?_a=DATAiZkSZAA0) - [Auto Fit Column Width](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/auto-fit-column-width-e6xs07sbjo56a9ot79k8bd.png/auto-fit-column-width-bxhbluu4nkh60bjhxw3d.png?_a=DATAiZkSZAA0) - [Auto Fit Row Height](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/auto-fit-row-height-arv8c80kptkigoeebds2.png/auto-fit-row-height-anz5dejd8ukcke66uzpyik.png?_a=DATAiZkSZAA0) - [Auto Save Backup](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/auto-save-backup-8do6rzu20wgxnwszf1o0u.png/auto-save-backup-1gnbj3q03g2txyyxurs58m.png?_a=DATAiZkSZAA0) - [Binder Clip](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/binder-clip-dg0gvrhwugojcknm8ury2.png/binder-clip-img52stydveg9jce8acxxc.png?_a=DATAiZkSZAA0) - [Binoculars](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/binoculars-e3lunyxpxp8ut6x2rgfrj.png/binoculars-lcpmvofe3gl6w3xyt95ylm.png?_a=DATAiZkSZAA0) - [Bomb](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/bomb-c7tlm6fy67fuuhtt6fif9.png/bomb-6uvga31x133oecefpq5l.png?_a=DATAiZkSZAA0) - [Brush Pen Tip Diagonal](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/brush-pen-tip-diagonal-6f2b2.png?_a=DATAiZkSZAA0) - [Brush Pen Tip Vertical](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/edit/brush-pen-tip-vertical-44d70.png?_a=DATAiZkSZAA0) --- [View full sitemap](/sitemap.md)