You need to make the border of an image match a specific color from another image in your presentation. The Eyedropper tool in PowerPoint lets you pick any color from an existing image and apply it to a shape or border. This removes the guesswork of trying to match colors by eye or typing RGB values. This article shows you how to use the Eyedropper to sample a color from an image and set it as the border color for another image.
Key Takeaways: Matching Image Border Colors With the Eyedropper
- Picture Border > Weight: Set the border thickness before using the Eyedropper to see the sampled color clearly.
- Picture Border > Eyedropper: Click this option to activate the color picker, then click any pixel on your screen to capture that exact color.
- Right-click the image > Format Picture > Fill & Line: Access advanced border settings where you can fine-tune transparency and line style after sampling.
What the Eyedropper Does for Image Borders
The Eyedropper is a color-sampling tool built into PowerPoint. It reads the color value of any pixel on your screen, including areas outside the PowerPoint window. When you click a pixel, PowerPoint stores that color and applies it to the currently selected object, such as the border of an image.
To use the Eyedropper on an image border, you first need to add a border to the image. The border is a line that surrounds the image frame, and you can control its weight, color, and style. The Eyedropper works on any line color setting, including the border of a picture, a shape, or a text box.
No add-ins or external tools are required. The Eyedropper is available in PowerPoint for Microsoft 365, PowerPoint 2021, PowerPoint 2019, and PowerPoint 2016 on Windows and Mac. The steps in this guide use the Windows version, but the Mac version works similarly with minor menu differences.
Steps to Match an Image Border Color Using the Eyedropper
- Select the image that needs a border
Click the image on the slide to select it. Selection handles appear around the image edges. - Open the Picture Format tab
With the image selected, the Picture Format tab appears on the ribbon. Click it to view image-specific tools. - Add a border to the image
In the Picture Styles group, click Picture Border. A menu opens with color swatches, weight options, and dash styles. Choose any color temporarily so the border becomes visible. The exact color does not matter yet. - Set the border weight
Still in the Picture Border menu, point to Weight and select a line thickness. A thicker border, such as 4.5 pt or 6 pt, makes the sampled color easier to see. You can adjust the weight later. - Activate the Eyedropper
Click Picture Border again. At the bottom of the color palette, click Eyedropper. The mouse pointer changes to a magnifier icon with a square showing the color under the cursor. - Sample the target color
Move the mouse over the image that has the color you want to match. As you move, the magnifier shows a live preview of the pixel color. Click the mouse to capture that color. PowerPoint immediately applies it to the border of the selected image. - Adjust the border style if needed
If the border looks too thick or too thin, return to Picture Border > Weight and change the value. You can also set a dashed line or add transparency by right-clicking the image, selecting Format Picture, and expanding the Line section.
Sampling a Color From Outside the PowerPoint Window
The Eyedropper can pick colors from any open application or your desktop wallpaper. After clicking Eyedropper, keep the mouse button pressed, drag the magnifier outside the PowerPoint window, and release over the desired pixel. This method works on both Windows and Mac.
Using the Eyedropper on Multiple Images
To apply the same border color to several images, sample the color once. Then select each additional image, click Picture Border, and the sampled color appears as the first color swatch under Recent Colors. Click that swatch to apply it without reactivating the Eyedropper.
Common Mistakes When Matching Border Colors
The Border Color Looks Different After Applying
The sampled color may appear darker or lighter on a thin border. PowerPoint applies the color as a solid line, but a thin line reduces the visible area of the color, making it seem darker. Increase the border weight to at least 3 pt to see the true sampled color.
The Eyedropper Does Not Appear in the Menu
The Eyedropper option is missing if you are using PowerPoint Online or an older version like PowerPoint 2013. Upgrade to a supported version or use the desktop app. On Mac, the Eyedropper is available in PowerPoint for Microsoft 365 and PowerPoint 2021.
Accidentally Sampling the Wrong Pixel
If you click the wrong area, the border changes to an unwanted color. Immediately press Ctrl+Z to undo. Then repeat the steps to activate the Eyedropper and click the correct pixel.
Applying the Sampled Color to a Shape Instead of an Image
The same Eyedropper method works for shapes. Select the shape, click Shape Format > Shape Outline > Eyedropper, and click the target pixel. The sampled color applies to the shape outline.
| Item | Picture Border Eyedropper | Shape Outline Eyedropper |
|---|---|---|
| Menu path | Picture Format > Picture Border > Eyedropper | Shape Format > Shape Outline > Eyedropper |
| Applies to | Selected image border | Selected shape outline |
| Color storage | Recent Colors swatch | Recent Colors swatch |
| Transparency support | Via Format Picture > Line | Via Format Shape > Line |
The Eyedropper tool gives you an exact color match for image borders without manual RGB entry. After matching one border, use the Recent Colors swatch to apply the same color to other borders or shapes. For precise control over border transparency, open the Format Picture pane and adjust the Line transparency slider.