RGB with Arduino

//libraries
#include <LiquidCrystal_I2C.h>

//define lcd pin and size
LiquidCrystal_I2C lcd(0x27, 16, 2);

//led pin
int red = 11;
int green = 10;
int blue = 9;

//buttons pin
int pOne = 7;
int pTen = 6;
int pHundred = 5;
int pNext = 4;
int pOK = 3;
int pReset = 2;

//value of button
int valOne = 0;
int valTen = 0;
int valHundred = 0;
int valNext = 0;
int valOK = 0;
int valReset = 0;

//value that says what color it is
int color = 0;

//value of the led
int valRed = 0;
int valGreen = 0;
int valBlue = 0;

void setup() {
 //led
 pinMode(red, OUTPUT);
 pinMode(green, OUTPUT);
 pinMode(blue, OUTPUT);
 //buttons
 pinMode(pOne, INPUT);
 pinMode(pTen, INPUT);
 pinMode(pHundred, INPUT);
 pinMode(pNext, INPUT);
 pinMode(pOK, INPUT);
 pinMode(pReset, INPUT);
 //lcd setup
 lcd.init();
 lcd.backlight();
 lcd.setCursor(0, 0);
 lcd.print("R:");
 lcd.setCursor(7, 0);
 lcd.print("G:");
 lcd.setCursor(0, 1);
 lcd.print("B:");
}

void loop() {
 //buttons value
 valOne = digitalRead(pOne);
 valTen = digitalRead(pTen);
 valHundred = digitalRead(pHundred);
 valNext = digitalRead(pNext);
 valOK = digitalRead(pOK);
 valReset = digitalRead(pReset);

 if (valNext == 1) {  //If the "Next" button is pressed, the value of the color variable increases
    color = color + 1;
   delay(300);
 }
 if (color >= 3) { //If the value of the "color" variable is greater than or equal to 3, it returns the value of the variable to 0. Because there are three colors
   color = 0;
 }
 //set a maximum brightness value of each color
 if (valRed >= 256) {
   valRed = 0;
   lcd.setCursor(3, 0);
   lcd.print("   ");  //clear the value in the display
 }
 if (valGreen >= 256) {
   valGreen = 0;
   lcd.setCursor(10, 0);
   lcd.print("   ");
 }
 if (valBlue >= 256) {
   valBlue = 0;
   lcd.setCursor(3, 1);
   lcd.print("   ");
 }
 //If the color chosen is red and the button pressed is pOne increases the value of the variable. And so on
 if (color == 0 and valOne == 1) {
   valRed = valRed + 1;
   delay(300);
 }
 if (color == 0 and valTen == 1) {
   valRed = valed + 10;
   delay(300);
 }
 if (color == 0 and valHundred == 1) {
   valRed = valRed + 100;
   delay(300);
 }
 if (color == 1 and valOne == 1) {
   valVGreen = valGreen + 1;
   delay(300);
 }
 if (color == 1 and valTen == 1) {
   valGreen = valGreen + 10;
   delay(300);
 }
 if (color == 1 and valHundred == 1) {
   valGreen = valGreen + 100;
   delay(300);
 }
 if (color == 2 and valOne == 1) {
   valBlue = valBlue + 1;
   delay(300);
 }
 if (colore == 2 and valTen == 1) {
   valBlue = valBlue + 10;
   delay(300);
 }
 if (color == 2 and valHundred == 1) {
   valBlue= valBlue + 100;
   delay(300);
 }
 //write the rgb values on the LCD
 lcd.setCursor(3, 0);
 lcd.print(valRed);
 lcd.setCursor(10, 0);
 lcd.print(valGreen);
 lcd.setCursor(3, 1);
 lcd.print(valBlue);
 if (valOK == 1) {  //If the "OK" button is pressed, the LED takes on the color of the variable values
   analogWrite(red, valRed);
   analogWrite(green, valGreen);
   analogWrite(blue, valBlue);
 }
 if (valReset == 1) { //if the "Reset" button is pressed, each value is reset
   digitalWrite(red, LOW);
   digitalWrite(green, LOW);
   digitalWrite(blue, LOW);
   valRed = 0;
   valGreen = 0;
   valBlue = 0;
   color = 0;
   lcd.setCursor(3, 0);
   lcd.print("   ");
   lcd.setCursor(10, 0);
   lcd.print("   ");
   lcd.setCursor(3, 1);
   lcd.print("   ");
 }
}