Colour Rendering Index (CRI)
The Colour Rendering Index (CRI) is a measure of how faithfully a test light source can render a set of 15 defined colours when compared to a natural light source. The more balanced the rendering results are, the higher the CRI will be. If all test colours render equal to a tungsten halogen lamp the CRI would be 100.
A typical entertainment RGB led lighting fixture (Color Block™) has a CRI of 67. The MSR575 lamp fitted into many of the professional entertainment moving lights have a CRI of 70. Such are the advances in control technology that the latest Chroma-Q RGBA fixture (Color Force™) has a CRI of 92.
CRI Test Colour Samples
Name
Appr. Munsell
Appearance under daylight
Swatch
TCS01
7,5 R 6/4
Light greyish red
TCS02
5 Y 6/4
Dark greyish yellow
TCS03
5 GY 6/8
Strong yellow green
TCS04
2,5 G 6/6
Moderate yellowish green
TCS05
10 BG 6/4
Light bluish green
TCS06
5 PB 6/8
Light blue
TCS07
2,5 P 6/8
Light violet
TCS08
10 P 6/8
Light reddish purple
TCS09
4,5 R 4/13
Strong red
TCS10
5 Y 8/10
Strong yellow
TCS11
4,5 G 5/8
Strong green
TCS12
3 PB 3/11
Strong blue
TCS13
5 YR 8/4
Light yellowish pink (skin)
TCS14
5 GY 4/4
Moderate olive green (leaf)
TCS15
1 YR 6/4
Asian skin
