openmv cam too blue

all the picture from the camera has too light blue color
the white telephone shows as light blue not white.
the gray palstic of the printer it shows as light blue
firm version 2.4.1

my t-shirt at the attachment file is light green

Hi, the camera does something called auto white balancing to make the image look white. If you want true color you need to turn it off. See the color tracking scripts for examples. To get an image with purer colors point the camera at a scene with mostly white objects and then turn autowhite balance off.