What you're trying to say is that this was your first time to download and use the skype software? And its background was blue

The sky is blue

Today, I saw the sky.
I saw the blue sky.
The sky is blue.

:)

The skype is blue

Today, I saw the blue skype.
I saw the blue skype.
The skype is blue.

The Skype Emblem Is Blue

Today, I saw the Skype emblem.
I saw the blue Skype emblem.
The skype emblem is blue.