No, the blues have a peak at the 450nm range (blue light). Actinics have a spike at 420nm (purple), but purple is much harder to make than blue, so as a consequence, the blues are often 50-100% brighter (in fact, the blue+ style bulbs rival many daylight T5s in output and longevity... they are great bulbs).
You can get the same bulb in PC (they make blue/7100K/450nm bulbs as they are labelled, but the output of PC's is about 1/3 that of T5s per watt because T5s are about 50% more efficient, but also allow for individual parabolic reflectors that are very effective.
LED's are also not very efficient at all, and I wouldnt consider them either.
There are 20,000K halides you could use a backup, but as halides, even with a huge blue spike, the bluest of halides will still put out lots of daylight, and so the effect isnt very effective.
The T5s are the best bet really. On a tank in Chicago, 1500g, 8x8x3' high, we used 4 bulb banks of T5s to suppliment the daylight of a 4x4 skylight. It worked out very well.