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Op-Art Bulge Pattern – Hard #2

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Tip: tap a color, then tap any shape to fill it. Your coloring is saved on this device automatically. To color on paper, download the Letter or A4 PDF and print it at 100%.

Up nextOp-Art Spiral Pattern – Hard #3 →

A checkerboard grid that swells outward in one place. Color alternate squares dark and light for a striking 3D bulge. The hard version is full of small shapes for experienced colorists; fine-tip pens or sharp pencils work best. Tap any shape to fill it online, or print the page.

More geometric coloring pages

Twisted Squares Pattern – Hard #4Twisted Squares Pattern – Hard #4Flower of Life Pattern – Hard #5Flower of Life Pattern – Hard #5Star and Cross Pattern – Hard #6Star and Cross Pattern – Hard #6Hexagram Star Pattern – Hard #7Hexagram Star Pattern – Hard #7Octagon Star Pattern – Hard #8Octagon Star Pattern – Hard #8Star Lattice Pattern – Hard #9Star Lattice Pattern – Hard #9Tumbling Blocks Pattern – Hard #10Tumbling Blocks Pattern – Hard #10Hexagon Mosaic Pattern – Hard #11Hexagon Mosaic Pattern – Hard #11

See all geometric coloring pages →

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Printing tips

  • Repeat the same two to four colors in every tile for a calm, tiled look.
  • Fine-tip markers or sharp colored pencils make the small shapes on hard pages easier to fill.
  • For op-art pages, alternate a dark and a light color to make the pattern pop.