span class in keyword

Hi,

To make sure our brand name: my4Glogo is written in lowercase and the letters 4G are uppercase and blue I created some span classes and the name looks like this now:

<span class="uk-text-lowercase">my<span class="uk-blue-uppercase">4G</span>logo</span>

The question is: Will search engines still recognize this as my4Glogo or will there be a problem using span classes inside a keyword?

Thanks