Color & Design Calculators — HEX/RGB Converter & Aspect Ratio

These two tools handle quick color and image-sizing tasks that come up constantly in design work: converting a color between HEX, RGB, and HSL, and figuring out dimensions or aspect ratio for an image. For more layout math, see the Developer Tools hub, especially the CSS Units Converter.

HEX/RGB Color Converter

Convert colors between HEX, RGB, and HSL formats instantly.

Image Aspect Ratio Calculator

Calculate the aspect ratio or resize dimensions for any image.

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