In PowerPoint, you can recolor a video on a slide by applying a built-in stylized color effect, such as a sepia tone or grayscale.

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On the slide, select the video that you want to recolor.
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On the Format tab, in the Adjust group, click Color to see the options under Recolor.
Tip: If you don't see the Formattab, make sure that the video is selected.
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Do one or more of the following:
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Choose from the pre-built, stylized recolor effects.
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To view additional colors, including variations of theme colors, standard, or custom colors, click More Variations. The recolor effect will be applied using the color variation.
Tip: Move your mouse pointer over a recolor effect to get a preview of what your video would look like with that recolor effect applied to it.
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