Converting RGB float data to hex string [closed]

Question

I'm writing a tool to modify a game, and the game uses float's to store RGB data (ranging from 0.0 -> 1.0). How would you best suggest I go about converting from float RGB Data to a Hex String/Byte RGB Data?

Answer 1

var rgbString = string.Format("#{0}{1}{2}", 
    ((int)(redValue * 255)).ToString("X2"), 
    ((int)(greenValue * 255)).ToString("X2"), 
    ((int)(blueValue * 255)).ToString("X2"));

edited (perhaps more readable code):

var rgbString = string.Format("#{0:X2}{1:X2}{2:X2}", 
    (int)(redValue * 255), 
    (int)(greenValue * 255), 
    (int)(blueValue * 255));

Answer 2

float rVal = 0.5f;
float gVal = 0.94140625f;
float bVal = 0.21484375f;

byte rByte = (byte)(rVal * 256);
byte gByte = (byte)(gVal * 256);
byte bByte = (byte)(bVal * 256);

string rgb = rByte.ToString("X2") + gByte.ToString("X2") + bByte.ToString("X2");

Result:

80F137