Why Replace color doesn't work for B/W and greyscale images?

Forum|Forum|3 years ago
August 29, 2022
3 replies
249 views

for details see the attachment.

I want to change white to yellow but PS shows an equivalent grey image. Why?

please help me and if there any other methods to change color please guide.

Windows

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D Fosse

Community Expert

Color in Photoshop has a narrower meaning than it does in everyday speech. The tonality scale from black via grays to white are not colors. The are the absence of color.

In Photoshop, they are Luminosity values. The luminosity component is strictly separate from the Color component.

If that wasn't so, it would not be possible to use blend modes. Painting in Color mode would just be a regular opaque paintbrush.

Bojan Živković11378569

Community Expert

Try this:

Set Foreground color of your choice (yellow).
Activate Paint Bucket Tool
Click once on grey color on your image.

You can also make selection then fill it with color of your choice using Edit > Fill command.

Why does not work when using Color Replacement? Perhaps because black, white and everything in between are not technicaly colors.

From trhe internet:

"

Some consider white to be a color, because white light comprises all hues on the visible light spectrum. And many do consider black to be a color, because you combine other pigments to create it on paper. But in a technical sense, black and white are not colors, they're shades."

Chuck Uebele

Community Expert

White, gray, and black aren't considered colors. You need to use a different method to change gray to another color, like hue/Saturation colorize.

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