SVG color-interpolation-filters Property
color-interpolation-filters controls the color space used for filter effect calculations, affecting how blurs and blends actually look.
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Supports PNG, JPG, BMP, WEBP up to 5MB
linearRGB vs sRGB for Filter Calculations
color-interpolation-filters defaults to linearRGB per the SVG specification, which performs filter math like blurring and color blending in linear light space for physically accurate results, but this can produce unexpected darkening or lightening compared to design tools, so many developers explicitly set it to sRGB to match familiar color values.
- The spec default of linearRGB performs filter math in physically accurate linear light
- linearRGB can cause unexpected darkening or brightness shifts versus design tools
- Setting sRGB explicitly matches filter color math to familiar authored color values
Why Blurs and Blends Can Look Off Without This Fix
A feGaussianBlur or feBlend rendered under the default linearRGB color space can produce visibly different, often darker, midtone colors compared to how the same colors appear unfiltered, which is a common source of confusing color mismatches — adding color-interpolation-filters: sRGB to the filter element resolves this discrepancy directly.
- Default linearRGB can make filtered midtones look noticeably darker than expected
- This mismatch is a common, confusing source of filter color discrepancies
- Adding color-interpolation-filters: sRGB resolves the discrepancy directly
Frequently Asked Questions
Why does my blurred shape look darker than the original color?
The SVG spec defaults filter color math to linearRGB, which computes blurs and blends in linear light space, producing darker midtones than sRGB-based tools expect.
Should I always set color-interpolation-filters to sRGB?
For most web design work matching CSS and design-tool color expectations, yes — sRGB produces filter results that visually match unfiltered colors more predictably.
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