Bluish tint to photos on Nikon D5100 in manual mode?

Hi, so with the warmer weather i've been exploring more and taking pictures with my camera, i've become quite good a using the manual settings. But one thing i've noticed is that all my photos have this bluish tint to them when in manual mode, in automatic the tint goes away, can any one offer any help?

Check out your white balance, what you describe is usually the result of an incandescent white balance in a wrong lighting condition.

Actually using a camera in the manual mode has nothing to do with any shifts in colour

What is happening is that you are not setting the white balance of your camera to match the light falling on your subject.

When you are in the "auto" mode, the camera attempts to automatically adjust the white balance of the lighting, not the most accurate, but usually close enough

In the manual mode and when shooting in shade or overcast days, adjust the white balance for that lighting condition.

If you have your white balance set for incandescent and are shooting in bright sun, the image will be too blue.

It seems that you have yet so spend any time learning the fundamentals of photography an until you do, things like this will thwart your attempts to make amazing photos

There's an adage that covers this question.

Those of us who answer such questions as yours generally refer to it simply as "RTFM"

What's happening is this:

Auto mode attempts to 'automatically' adjust the color balance of the photo taken based on a vast computerized internal library of similar shooting scenarios. It may not be correctly balanced but it generally is pretty close or somewhat acceptable.

When you switch your camera to Manual Mode, whatever settings were on the camera from the last manual white balance adjustment you may have made in the past will take precedence,

In order to get the correct white balance in manual mode, you 'RTFM'.
.
.

Your white balance is wrong.