Random.value
static var value: float;
static float value;
static value as float
Description

Returns a random number between 0.0 [inclusive] and 1.0 [inclusive] (Read Only).

Both 0.0 and 1.0 may be returned by this property. This behaviour is different to that of many other random number generators which return a value less than but never exactly equal to 1.0.
// Generate a random color value.
function RandomColor() {
	// A different random value is used for each color component (if
	// the same is used for R, G and B, a shade of grey is produced).
	return new Color(Random.value, Random.value, Random.value);
}
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    Color RandomColor() {
        return new Color(Random.value, Random.value, Random.value);
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def RandomColor() as Color:
		return Color(Random.value, Random.value, Random.value)