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Filter · 19 / 68

Posterize

Collapses continuous tones into flat color bands for a silkscreen or comic-print look.

Image
Green natural landscape

Hover the photo to apply the effect — move away to compare.

Adjust
1.1
4px
Metadata
interaction
Always on
browser
Enhanced — SVG filter
reduced motion
static
touch fallback
Identical on touch
Edit the CSS above — the preview updates live.

About Posterize

Posterize bands continuous tones into flat steps with an SVG discrete transfer function — a silkscreen/poster look, with a Comic preset that punches saturation first. Switch --ifx-post between the pre-baked level presets (3/4/5 tones or Comic; SVG attributes can't read CSS vars) and layer --ifx-sat on top. IMPORTANT: ship the accompanying inline <svg> <filter> block alongside the CSS — the copied HTML/React includes it; a CSS-only integration must add the <svg> once. Static: identical on touch, nothing to reduce for prefers-reduced-motion. If you place this effect more than once on a page, include the <svg> filter block only once — remove it from the additional instances so the filter ids stay unique.

Use cases

  • editorial
  • poster
  • branding
  • hero

Browser support

Enhanced — SVG filter. This effect uses an enhanced feature — provide a graceful fallback for older browsers.

Accessibility

  • Essential content is never hidden behind hover.
  • No motion — nothing to reduce.
  • Touch fallback: identical on touch.