Hello Van48. Welcome to the forum. The short answer to your question is no. There is no way to radically change the color of a growing rose.
For the most part, the color of roses is inherited at the time of breeding. However, there are a few factors that may influence the color of your roses.
One is temperature. Some roses will lighten in hot weather, and darken in cooler weather.
Another is time. The rose Double Delight, for example, has alot more crimson in its coloring in the mid summer, as it needs the sun to bring out the red. Then it gets much paler in the fall, when the sun is less.
Sometimes roses can be a little unstable in the first year of planting. Almost like they are learning to walk or something, and won't really show their true colors until they are more established.
The graft on the rose may have also died out, and the rose that is blooming is actually the plant from the root it was grafted on.
The use of Iron does sometimes influence the tones of the oranges and reds in roses.
These are the only way that I know of to change the color of roses.
Hope this helps!