I want to use color for .text scripting, string scripting.
I know Color.red, Color.blue, very basic method.
Where can I find more color name[.red or .blue 's color name which work in coding]?
And this does not work, why?
Color(37/255,114/255,82/255,1)
The colour values you can use are documented in the class variables section of the Color manual page.
The values you are using in your calculations are all integers and so integer division will be used. The result of all those divisions is zero so the colour will appear black. You just need to write 255.0 or 255f in C# to get the right values.
f also works in JavaScript as of Unity 3.
(I use a capital F because I only get syntax coloring that way, but either case works.)