HTML Colour Text

Is it permissible to use HTML Coloured Text  in large text fields, such as JIC Steps?

Example

<span style="color: #FF0000;"> Red Text Here </span>

or 

<b> <span style="color: #FF0000;"> BOLD Red Text Here </span> </b>

It appears to work in our ‘Pre Production’ instance but wondering if there are any side affects. (Jasper Report Work Capture, etc).

We are aware of the issue of non-printable characters when copy and paste from MS Office into fields (Unicode errors for apostrophes).

Is Html Colour Text likely to create similar errors?

Mx Ver 8.3 SP5

Thanks

RD