Gradient maps not allowing me to pick a color

Question

Could I possibly get a step-by-step guide for using Gradient maps?  I've tried using it myself but whenever I go to pick my colors it changes it to the greyscale equivalent (ie, picking light blue gives me a light grey, picking dark blue gives me a dark grey).  Is there a certain layer type or spec I need to specify first or am I just going about the process wrong?  Any help would be appreciated.

davescm · Accepted Answer

You did not in anyway answer the question. How do you change the color value if the color option is shaded out and unavailable? If I am understanding the person's orginal question that is their situation, no option that allows them to change the color.

The question was answered in my reply ( from 7 years ago). If you are unable to select a colour then you are probably in grayscale mode.

Dave

davescm · Answer

HiThe gradient map takes the shades of grey, from your image, as the input then outputs the colour set in your gradient.So if I take this image of yours truly :Add the gradient map - as an adjustment layerSet the gradient to run from black through red to blueThen the output looks like this The darkest areas are mapped to black in my gradient the lightest to blueIf I click and add more points into the gradient (clicking on the colour square to change the colour at each point)I get thisDave

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