I’ve watched a tutorial video but I’m confused.
Don't watch random videos . Most are wrong.
He said to be able to get the Fully Saturated Green Color In RGB Color Space
Settings should be like this
Channel : Green
Red Slider : Left
Green Slider : Right
Blue Slider : Middle
I don't think that is correct.
If you mean an RGB decimal value of 0 255 127, that isn't fully saturated green. It is fully saturated Spring Green with 50% Luminance. Fully saturated Green with 50% luminance is 0 255 0.
And
When he moves blue slider min and max he gets secondary and tetriary colors.
No. When he moves the blue slider to min He gets the primary colour Green.
When he moves the blue slider to max, he gets the secondary colour Azure.
There are three Primary Colours: Red 255 0 0, Green 0 255 0, and Blue 0 0 255.
There are three Secondary Colours: Cyan 0 255 255, Magenta 255 0 255, and Yellow 255 0 0.
There are six Tertiary Colours: Rose, Violet, Azure, Spring Green, Chartreuse and Orange. What these have in common with each other is that one of the three RGB values is at max, one is at half of max, and one is at zero.
There are twelve Quaternary Colours. What these have in common with each other is that one of the three RGB values is at max, one is at either 1/4 of max or 3/4 of max , and one is at zero.
So with all these there is always one RGB channel at 0 and one at 100% (= 255 decimal). With primary colours two channels are at 0.
With all these colours you can produce shades and tints. A tint is a lighter version of the same hue. A shade is a darker version of the same hue.
To produce a tint of a primary colour, you increase the two channels that were at 0 by equal amounts, To produce a tint of a secondary colour you increase the channel that was at 0 to a higher value. To produce a tint of a tertiary colour, you increase the channel that was at 0 by an amount, and the channel that was at 50% by half as much. To produce a tint of a quaternary colour, you increase the channel that was at 0 by an amount, and a channel that was at 3/4 of max by 1/4 of the increase in the 0 channel or a channel that was at 1/4 of max by 3/4 of the increase to the 0 channel.
To produce a shade of a primary colour, you decrease the non-zero channel by an amount. To produce a shade of a secondary colour you decrease the two non-zero channels by equal amounts. To produce a shade of a tertiary colour, you decrease the channel that was at max by an amount, and the channel that was at 50% by half as much. To produce a shade of a quaternary colour, you decrease the channel that was at max by an amount, and a channel that was at 3/4 of max by 3/4 of the increase in the max channel or a channel that was at 1/4 of max by 1/4 of the increase to the max channel.
If you want to produce shade or tints, it is often easier to adjust HSL values than RGB values. Keep the hue and saturation values unchanged and adjust the luminance value.
How will the settings for other settings which another channel is selected (Red or Blue) for fully saturated tones and secondary and tetriary colors and why?
Randomly changing one or both of the non-max channels will change the hue and probably the saturation. Unless the changes you make are coordinated as described above, you will probably just get a non-saturated version of a different hue.
Hue and saturation don't depend just on one or two colour channels, but on the relationship between all three channels.
