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Converting Color Spaces in JavaScript

A challenge I faced in building an image "emojifier" was that I needed to change the color spaces of values obtained using getImageData() from RGB to HSL. I used arrays of emojis arranged by brightness and saturation, and they were HSL-based for the best matches of average pixel colors with the emojis.

In this article, we’ll study functions that will be useful for converting both opaque and alpha-enabled color values. Modern browsers currently support the color spaces RGB(A), hex, and … Read article

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8-Digit Hex Codes?

Weird right? 4-digit hex codes too. They are a way put alpha transparency information into the hex format for colors. You might be seeing it more all the sudden if you use Chrome, because it dropped in 52, and the DevTools seem to be defaulting to showing alpha transparent colors in this format even if you set it originally using something else.

Firefox supports it too, for the record.… Read article

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