Hue

Hue rotation shifts every color in a photo around the color wheel by the same angle, while leaving brightness, contrast, and how saturated each color is completely untouched. At small angles — a few degrees either way — it's a genuinely useful correction for a mild color cast: a photo that leans slightly too green under fluorescent light, or slightly too orange under tungsten bulbs, can often be nudged back toward neutral with a small hue shift rather than a full white-balance redo. At larger angles it stops being a correction and becomes a creative effect: skies turn purple, skin tones turn distinctly unnatural, and grass turns blue, which is exactly the kind of surreal, shifted-color look some edits are going for on purpose.

The slider runs from −180° to +180°, a full loop around the color wheel in either direction, rendered live using the browser's built-in canvas hue-rotate filter. Because it rotates every hue by the same fixed angle rather than remapping specific colors individually, it can't turn just the sky blue without also affecting everything else that shares a similar hue — it's a whole-image tool, not a selective color replacer.

Everything happens locally in your browser using the Canvas API; the photo is decoded, rotated, and re-encoded on your device without ever being uploaded. If you want to pair a hue shift with brightness, contrast, saturation, or sharpness adjustments on the same image, the combined Image Adjustor has all five in one place.