The Selective Color adjustment lets you pick one of the 8 available color ranges (reds, oranges, yellows, greens, cyans, blues, violets, and magentas) and adjust the hue, saturation, and brightness of that particular color range, leaving other colors in an image untouched.
The Selective Color adjustment also offers a color histogram that shows just how much of that particular color there is in an image.
You can adjust Selective Color manually, or automatically using the machine learning-powered ML Enhance.
Tap and turn on Selective Color.
Tap to select one of the color ranges in the Selective Color adjustment.
Drag the sliders to make adjustments to your selected color range:
Hue: Drag the Hue slider to shift the hue of the colors in the selected color range towards neighboring colors in the color spectrum.
Saturation: Drag the Saturation slider to the right to make the colors in the selected color range more intense, or the left to tone them down.
Brightness: Drag the Brightness slider to the right to make the colors in the selected color range brighter, or the left to make them darker.
Tap in the toolbar at the top of the screen.
Tap ML next to Selective Color.
After doing this, you can additionally fine-tune the adjustment sliders.