Watercolor Math Background for Slides with Blue, Orange and Green Washes and Hand Lettered Formulas

Free watercolor math background for slides: blue, orange and green washes with hand-lettered formulas around white. HD 16:9.

Created by Elena Gidura · November 2, 2026

This watercolor math background for slides pools soft blue paint in the top-left corner, orange in the top and bottom right, and green along the bottom edge. Pi, sigma, integrals, triangles and the Pythagorean formula are lettered inside the washes in matching tones. I kept a wide white oval clear in the middle for your title and text. Made for friendly math and science lessons.

Works well for

  • Algebra, calculus and geometry lecture slides
  • Math tutoring, online courses and homework help
  • Pi Day, math fair and STEM week presentations
  • Teacher resources, formula reviews and exam prep
  • University seminars and research methods talks

Specs

  • 1920 x 1080 px · 16:9 widescreen
  • JPG, high quality, no compression artefacts
  • PowerPoint · Google Slides · Keynote · Canva
  • No watermark · no sign-up
  • Free for personal and commercial use

You can use this Soft Watercolor Math Formula Slide Background for Algebra and Geometry Lessons as a Wallpaper or use it as a background for slides.

See the full collection of school and kids PPT backgrounds, or see how to set a background in PowerPoint and Google Slides.

Download free HD background

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