Adjust color and tone with Levels and Curves eyedroppers

Last updated on Sep 30, 2026

Learn how to use eyedropper tools to define tonal range by sampling image areas and mapping them to target values.

Eyedropper tools let you define black points, white points, or neutral midtones by sampling directly from your image.

This approach works best when you can identify clear reference points—areas that should be pure black, pure white, or neutral gray. For broader tonal adjustments using sliders or curve points, see the Levels adjustment and Curves adjustment.

Note

The Set Gray Point eyedropper is unavailable for grayscale images because it's designed for color correction.

Apply a Levels or Curves adjustment layer to your image
Identify target areas in your image (darkest shadow, brightest highlight, or neutral gray)

The Set Gray Point eyedropper is unavailable for grayscale images because it's designed specifically for color correction.

Set black and white points

Apply a Curves or Levels adjustment layer from the Adjustments panel.

In the Properties panel, double-click the Set Black Point eyedropper to configure shadow targets, or double-click the Set White Point eyedropper to configure highlight targets.

In the Adobe Color Picker, set R, G, and B to 0 for pure black, or to 255 for pure white. For gray tones, enter identical values between 0 and 255—lower values create darker grays, higher values create lighter grays.

Select OK to save your target values.

Click the darkest area that should contain detail with the Set Black Point eyedropper, or click the brightest area with the Set White Point eyedropper.

Tip

Don't sample specular highlights (bright reflections on shiny surfaces like glass or metal) as white points—these areas should remain pure white with no detail.

Remove color casts with the gray point eyedropper

Identify an area in your image that should be neutral gray, such as pavement, clouds, or white fabric in shadow.

Apply a Levels or Curves adjustment layer from the Adjustments panel.

In the Properties panel, double-click the Set Gray Point eyedropper.

In the Adobe Color Picker, verify that R, G, and B values are identical—for example, 128, 128, 128. If needed, enter identical values to ensure a neutral target.

Select OK to confirm.

With the Set Gray Point eyedropper active, click the neutral area you identified in your image.

Tip

Use a color sampler to mark neutral areas before applying the adjustment. This makes them easier to select with the eyedropper.

The adjustment resets midtones and removes the color cast throughout the image. After applying eyedropper corrections, refine your results with additional adjustments. Use the Levels sliders to modify contrast, or add control points to the Curves adjustment to fine-tune specific tonal ranges.

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