From: Influence of temperature on sonographic images of the median nerve for the diagnosis of carpal tunnel syndrome: a case control study
Color
Range
When S > 0.3 and V > 0.3
Red
H < 30 or H ≥ 330
Yellow
30 ≤ H < 90
Green
90 ≤ H < 150
Cyan
150 ≤ H < 210
Blue
210 ≤ H < 270
Magenta
270 ≤ H < 330
When S ≤ 0.3
Black
V < 0.5
White
V ≥ 0.5