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Color Matching between Your Monitor and Prints
1. Adjusting Ambient Light (Light Source)

Printed photographs reflect peripheral light (ambient light). This light enters our eyes, allowing us to recognize the image. For this reason, light reflected from a print viewed outside with the sun directly overhead will look different from one viewed indoors at night.
The problem is that monitors generate their own light rather than reflect ambient light. The colors emitted will remain virtually unchanged, regardless of changes in ambient lighting. In practical terms, this results in differences in the relationship between respective colors when compared to a print.
 
The first step in matching is adjusting the ambient light
The first step in matching the monitor display and the printout as closely as possible is to adjust ambient lighting. Using Color Rendering Index (CRI) fluorescent lamps is recommended. These lamps have high CRI values (80 or more) and are available at any electronics store. The CRI is an indicator of the color visualization for the lamp, with a value of 100 representing visualization under standard lighting (natural light, or sunlight).

With such lamps, consider purchasing one with a color temperature around 5,000 K. Note that the color temperature of the lamp may differ from the original fluorescent tube, depending on the color of the cover over the lamp.

Outdoor lighting shifts subtly from minute to minute due to changing weather, time of day, and the angle of incidence on the room. Try using curtains and blinds to minimize this effect. We recommend performing color matching at night under artificial illumination.

 
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