I'm starting to understand why Grumpy_Mike is grumpy 
You really need to first learn how to use this forum. There are all sort of neat tool to help communicate your need. There is the URL button that tel us that there is a URL:
go there and you might find this code that will answer most of your questions:
/*
Reading a serial ASCII-encoded string.
This sketch demonstrates the Serial parseInt() function.
It looks for an ASCII string of comma-separated values.
It parses them into ints, and uses those to fade an RGB LED.
Circuit: Common-anode RGB LED wired like so:
* Red cathode: digital pin 3
* Green cathode: digital pin 5
* blue cathode: digital pin 6
* anode: +5V
created 13 Apr 2012
by Tom Igoe
This example code is in the public domain.
*/
// pins for the LEDs:
const int redPin = 3;
const int greenPin = 5;
const int bluePin = 6;
void setup() {
// initialize serial:
Serial.begin(9600);
// make the pins outputs:
pinMode(redPin, OUTPUT);
pinMode(greenPin, OUTPUT);
pinMode(bluePin, OUTPUT);
}
void loop() {
// if there's any serial available, read it:
while (Serial.available() > 0) {
// look for the next valid integer in the incoming serial stream:
int red = Serial.parseInt();
// do it again:
int green = Serial.parseInt();
// do it again:
int blue = Serial.parseInt();
// look for the newline. That's the end of your
// sentence:
if (Serial.read() == '\n') {
// constrain the values to 0 - 255 and invert
// if you're using a common-cathode LED, just use "constrain(color, 0, 255);"
red = 255 - constrain(red, 0, 255);
green = 255 - constrain(green, 0, 255);
blue = 255 - constrain(blue, 0, 255);
// fade the red, green, and blue legs of the LED:
analogWrite(redPin, red);
analogWrite(greenPin, green);
analogWrite(bluePin, blue);
// print the three numbers in one string as hexadecimal:
Serial.print(red, HEX);
Serial.print(green, HEX);
Serial.println(blue, HEX);
}
}
}
But over all, you should do and analyses all the example that is in the IDE pack, all the base is in there. I know we all like to do the big stuff, but big stuff is a bunch of small stuff put together. So do one step at the time.