If you mean can you import coloured text into topics the short answer is "no".
The longer answer is that, well, it's complicated. The simplest option for transferring coloured text from Word to MindManager is to copy the coloured text in the Word document and paste it into a map. Each paragraph will become a topic and the text font styles, sizes and colours will be preserved. The problem with this approach is that resulting map will be "flat"; ie, there will be no topic hierarchy in the map to match the Word document heading style.
The only way to reflect the heading structure is to import rather than copy and paste the document (or use the Send to MindManager button in Word to send a segment of it). Unfortunately any text colours in the Word headings will be lost, though coloured text in paragraphs with the Normal paragraph styles in Word will be imported as topic notes with the colours preserved.
If you have used Word heading styles consistently and have formatted each style with a different colour (for example, level 1 headings as red, level 2 as green, etc), there is a third way. You could create or modify a map theme in MindManager to reflect these colours in the topic hierarchy so that main topics had red-coloured text, the next level of subtopics green text, and so on. Any document imported to a new map based on this theme should then reflect the heading text colours in the topic hierarchy.
Alternatively if you didn't want to delve into the themes you could just import the document using the standard topic hierarchy to match the document heading structure, then format each topic level afterwards to match the document text colours.
I assume you have tried the IMPORT from MSWord function and found that it all is there, but with a standard layout.
In that case it is quite cumbersome to use the solutions (although correct) Alex gives you above.
ofcourse you stll can add colour to topics and text to your imported map.
That may be easier to do- also because of the Format Painter feature (you find that under the HOME tab => Clipboard section. Just play around with it and you will work it out.
... As I hinted in the last paragraph of my "cumbersome" response :-)
Actually I find the easiest way to format all topics at least at the main topic level is to either select a main topic and then use Ctrl+Shift+A to select all its siblings at this level, or just change the layout temporarily to an org chart and then just highlight the row of main topics. Then you can format them all in one go.
Below main topic level then format painting is as Ary suggests probably the best option.