DNA black filled icon
Outline DNA double helix drawn diagonally with rung bars between the two strands
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About the DNA black filled icon
Two strands wind around each other along a diagonal axis, forming three full twist segments joined by short parallel rung bars that stand for base pairs, with the strand ends tapering off at each corner. It signals genetics, heredity, molecular biology and research. Fit for biotech and pharma sites, DNA testing services, medical lab dashboards, science education slides and health app features.
The diagonal placement fills the square frame better than a vertical helix and gives the shape movement, while the closely ruled rungs add texture without heavy weight. It pairs with microscope, molecule and test tube icons in the same science set. The rung lines merge below 32 px, so favor larger sizes.
This is the solid black filled version of the dna icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.



















