If the original videos look bleak and not vibrant enough, you can use the automatic adjustments to make the colors look more vivid. If that isn't enough, you can always use manual adjustments to correct the colors.
Step 1: Select clip on the Timeline, select the clip that you want to adjust.
Step 2: Open color adjustments on the toolbar, click the color adjustments button to open the adjustments tool.
Step 3: Use auto adjustments - Auto Adjustment presets can fix contrast, saturation, and white balance of your image. The Magic Enhance preset will automatically determine the best brightness and contrast balance. To apply a preset to the image, drag and drop it to the clip on the Timeline.
The Manual Adjustments tab contains additional adjustment options. Drag the sliders to change brightness, saturation, hue, and other properties.
Once you have used the adjustments, the clip will be marked with a star icon, denoting applied tools or filters.
