Change River Colour to Blue?

[AdelaideFamilyPhotographer]

Hi Everyone,
I've attached a file that I need some help with please.
My client has requested the river be changed to a blue colour. Is this possible?
Renee

[Damien Symonds]

Oh gee Renee, you've got a greater problem than a muddy river here.  Please go here to fix it.

[Damien Symonds]

Unfortunately it's not possible to change muddy water to blue water.  I get asked this all the time.

You see, if water was blue, it would have to be clear.  And if it was clear, you'd be able to see (a) through it to the bed to a degree, and (b) more reflections.

If you change brown to blue, it doesn't look like clear, nice water, it looks like nuclear waste.

Sorry to be the bearer of bad news

[AdelaideFamilyPhotographer]

Ok thanks for advising on the water. 

I noticed the link you sent me about colour space. This is a print-optimized file, so the colour space is in Adobe RGB. 

Thanks for your help. I appreciate it. 

[AdelaideFamilyPhotographer]

Thanks for the article about colour space. It has challenged me (always good - always improving)

[Damien Symonds]

7 hours ago, AdelaideFamilyPhotographer said:

 noticed the link you sent me about colour space. This is a print-optimized file, so the colour space is in Adobe RGB.

Nooo!!!  This is a huge falsehood, please don't fall for it.  Adobe RGB is dangerous.

[Damien Symonds]

What screen do you have?  Make and model, I mean?

[AdelaideFamilyPhotographer]

6 hours ago, Damien Symonds said:

What screen do you have?  Make and model, I mean?

I work on an LG 27MP55HQ

[Damien Symonds]

Yes, only an sRGB screen.  PLEASE don't attempt to play with colours that neither your screen can show you, nor your lab print.  Change your workflow to sRGB immediately.