What is the difference between hue and saturation?

Hue shifts the actual color (red→blue→green, etc.). Saturation controls color intensity. High saturation makes colors vivid, low saturation makes them gray.

Will adjusting hue change the image to a completely different color?

Yes, when pushed to extremes. A hue shift of ±30° produces subtle color casts (warming or cooling). A shift of ±120° turns reds to greens, greens to blues, and so on. For accurate product photo color correction, keep adjustments under ±20°.

What does the lightness slider do differently than brightness?

Lightness in HSL space shifts all tones uniformly, moving both shadows and highlights up or down together. The Brightness tool applies a gamma adjustment that lifts mid-tones more than shadows, which better preserves shadow detail. For overall color pop, use hue/saturation; for exposure correction, use Adjust Brightness .

Can I make a black-and-white image by reducing saturation to zero?

Yes. Dragging saturation to −100 removes all color, producing a grayscale result. However, it applies uniform desaturation rather than luminance-weighted conversion. For a better monochrome result with proper tonal depth, use the dedicated Grayscale Image tool.

Does this affect PNG transparency?

No. The hue and saturation adjustment targets only the RGB channels. The alpha (transparency) channel is preserved untouched, so transparent areas remain transparent in the output.

Are my images uploaded to a server?

No. The adjustment runs entirely in your browser using an HTML Canvas. Your image never leaves your device: no upload, no server, no storage.

Adjust Colors

Change hue, saturation, and color vibrancy of images.

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What is Adjust Colors?

Adjust image colors online for free. Change hue, saturation, and vibrancy to correct color casts, enhance colors, or create artistic color effects.

Why use this tool?

Independent hue, saturation, and lightness controls. Real-time preview. Create everything from subtle corrections to dramatic color effects.

Common use cases

Use to correct unwanted color tints, make colors more vivid for social media, create artistic color shifts, or normalize colors across a photo series.

How to use Adjust Colors

1Upload your image
2Adjust hue, saturation, and lightness sliders
3Preview color changes in real-time
4Download your color-adjusted image

Frequently asked questions

What is the difference between hue and saturation?: Hue shifts the actual color (red→blue→green, etc.). Saturation controls color intensity. High saturation makes colors vivid, low saturation makes them gray.
Will adjusting hue change the image to a completely different color?: Yes, when pushed to extremes. A hue shift of ±30° produces subtle color casts (warming or cooling). A shift of ±120° turns reds to greens, greens to blues, and so on. For accurate product photo color correction, keep adjustments under ±20°.
What does the lightness slider do differently than brightness?: Lightness in HSL space shifts all tones uniformly, moving both shadows and highlights up or down together. The Brightness tool applies a gamma adjustment that lifts mid-tones more than shadows, which better preserves shadow detail. For overall color pop, use hue/saturation; for exposure correction, use Adjust Brightness.
Can I make a black-and-white image by reducing saturation to zero?: Yes. Dragging saturation to −100 removes all color, producing a grayscale result. However, it applies uniform desaturation rather than luminance-weighted conversion. For a better monochrome result with proper tonal depth, use the dedicated Grayscale Image tool.
Does this affect PNG transparency?: No. The hue and saturation adjustment targets only the RGB channels. The alpha (transparency) channel is preserved untouched, so transparent areas remain transparent in the output.
Are my images uploaded to a server?: No. The adjustment runs entirely in your browser using an HTML Canvas. Your image never leaves your device: no upload, no server, no storage.

More free tools. No signup, no watermarks.

Adjust Brightness

Make images brighter or darker.

Adjust Contrast

Increase or decrease image contrast.

Grayscale

Convert images to black and white.

Sharpen Image

Enhance image sharpness and detail.