About Grayscale and Color Modes

You can view image data in grayscale or in two different color modes:

Set Grayscale mode to study detail in a single wavelength of an image. Because of the way the eye reacts to colors, you may be able to see more detail in Grayscale than in a color mode. You can only view one channel at a time in Grayscale mode.
Set Blend Color mode to overlay nonfluorescent data such as Differential Interference Contrast (DIC) data sets onto fluorescent data sets or to visually compare intensities of more than three channels simultaneously. You can view up to five channels as separate colors. You can also assign grayscale as a color (this is useful for DIC data).
Set Basic Color mode to visually compare intensities of two or three wavelengths, improve speed of volume rendered images, or save multi-channel DeltaVision images as a series of TIFF images. If you choose a basic color for each channel (red, green, or blue), you can display up to three channels in this mode.