private float getBlue() {
		
		double blue = 0;
		
		if(temperature >= 66)
			blue = 255;
		else{
			blue = temperature - 10;
			blue = 138.5177312231 * Math.log(blue) - 305.0447927307;
			
			if (blue < 0) {
				blue = 0;
			}
			if (blue < 0) {
				blue = 255;
			}
		}
		
		
		return ColorUtil.hexToFloat(blue);
	}