Color Correction - Nuke 101: Professional Compositing and Visual Effects - page 196

20. Now, for a cooler-looking shot, drag the T (temperature) slider up towards the
blues. I stopped at 0.72.
21. To correct the hue of the blue, use the M (magenta) slider to make this blue either
have more magenta or more green in it. I went towards the green and left it at
−0.11.
22. Close the Color Wheel and Color Sliders panel ( FIGURE 4.50 ).
Figure 4.50. The values are always in RGB.