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Show HN: Swatchify – CLI to get a color palette from an image

james-see.github.io

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Show HN: Swatchify – CLI to get a color palette from an image

Post by jamescampbell » Fri, Nov 28, 2025, 6:08 AM UTC

A fast, cross-platform CLI tool that extracts dominant colors from images using k-means clustering.

Show HN: Swatchify – CLI to get a color palette from an image
james-see.github.io

Re: Show HN: Swatchify – CLI to get a color palette from an image

Post by goh-chunlin » Fri, Nov 28, 2025, 8:06 AM UTC

This looks clean. I appreciate the pkg decoupling.

Regarding the server mode (swatchify serve): Does the decoding step have a hard memory limit or dimension cap? Since image.Decode expands compressed files into full bitmaps, I am wondering if a large resolution upload (like a 4k print asset) could OOM-kill the container before the downscaler kicks in.

Re: Show HN: Swatchify – CLI to get a color palette from an image

Post by halfdaft » Sat, Nov 29, 2025, 2:35 PM UTC

Will definitely be using this - thanks!

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