09-23-2023, 07:47 PM
Usually this is a problem of color temperature.
So you can set a Sample point on a pixel of the color and use the Intended temperature slider in Colors ➤ Color temperature to get as close as possible to the required color.
Usually to try to find something neutral gray/white in the picture and make it as close as possible to gray (R=G=B). For instance in the image below, the background color is a bit blue (so the image is a bit "cold").
You will note that points 1 & 2 are good candidates because their Red/Blue values are about symmetrical around the Green. Point 3 is a lousy pick for this purpose.
Then you tweak the intended color to get as close as possible to R=G=B in the sample points:
So you can set a Sample point on a pixel of the color and use the Intended temperature slider in Colors ➤ Color temperature to get as close as possible to the required color.
Usually to try to find something neutral gray/white in the picture and make it as close as possible to gray (R=G=B). For instance in the image below, the background color is a bit blue (so the image is a bit "cold").
You will note that points 1 & 2 are good candidates because their Red/Blue values are about symmetrical around the Green. Point 3 is a lousy pick for this purpose.
Then you tweak the intended color to get as close as possible to R=G=B in the sample points:
If you have a neutral gray/white color in your picture you can use this script.
Otherwise if you know the color temperature of the source you can use both sliders in Colors ➤ Color temperature.