Apply changes to specific colours in a photo in Photos on Mac
You can adjust specific colours in a photo using the Selective Colour adjustment. For example, in a photo of a dancer against a coloured wall, you might use the Selective Colour adjustment to change the wall colour.
Note: You can also adjust specific colours in a video using the Selective Colour controls. See Change and enhance a video.
You can select and change the hue, saturation and luminance of up to six different colours in a photo.
In the Photos app on your Mac, double-click a photo, then click Edit in the toolbar.
Click Adjust in the toolbar.
In the Adjust pane, click the arrow next to Selective Colour.
Click a colour well to select it to store your colour change, click the Eyedropper button , then click a colour in the photo that you want to change.
With a colour selected, drag the sliders to change the colour:
Hue: Adjusts the hue of the selected colour. For example, you might change a green hue to blue.
Saturation: Increases or decreases the intensity of the selected colour. For example, by desaturating a vivid pink, you might change it to a light or nearly grey pink.
Luminance: Adjusts the luminance (the appearance of brightness or the amount of light reflected from a surface) of the selected colour.
Range: Adjusts the range of colours that change based on your colour selection. By changing the range you can increase or decrease how much similar colours are affected in the photo. For example, by increasing the range of a selected blue you might change all the blues shown in a sky, or by decreasing the range, limit the change to a specific blue object.