Please photoshop clothing color

[dan2002n]

Hello, I'm new and I am a 14 year old trying to Photoshop, its been very challenging though. I am in search for someone to please change the red suits to look like the one in the grey suit picture. The grey suit is called a stealth suit in the young justice series, but i ask that someone please try to change all the normal red outfits to look like the stealth suit. Please and Thank you.

my baby cousin and I love watching this show, and I wanna get a painter to paint and make a whole model of this character, but my cousin prefers the cool stealth suit. I wanna do this for his birthday. TYSM

View attachment Robin.I.Tried.To.Enhance.psdView attachment Robin.I.Tried.To.Enhance.psd

 

[colleague]

you can use an hue/saturation adjustment - layer
where you choose for 'reds' and lower the saturation and lightness

https://www.dropbox.com/s/qyjhoplgapvmxxh/Robin.psd?dl=0

 

[dan2002n]

Thank you that is amazing, can I ask to hide the red color in there. Such as the bottom of his shoes, and turn into a dark gray/black close to his outfit. Along with the red in the body