I love blue, purple and pink flowers. Whenever I photograph purple flowers they appear much bluer than they actually are rather than purple. Suggestions? Here is an iris that is really very purple.
Hmmmm... it could be that your post processing software is making the colors "cooler." Using Photoshop, I ran it thru "Auto Color" then "Auto Tone" for you. Does this look closer to what it should be?
you could always change the camera settings from standard to vivid when you know you are going to shoot something with bright colors like flowers/plants. the above image just needs tweaking in photoshop.....
the original image is a tad over-exposed (too bright) and it's washing out the purple in the flower.
Colors and monitor calibration... There are great differences in the color reproduction on various computer monitors. If the monitor is not calibrated, you really don't know if you are working with true color values or colors thrown off by a monitor which is not recording them accurately.
There are tools with which you can calibrate monitors but, you can get in the ballpark with this web site: