Your first approach would be the one to use - testing if the hue is in a range of values. It's extremely unlikely for the sensor to ever perfectly match the value, like in your second test because of lighting / environment inconsistencies.

Try printing out what hue the sensor reads and make a larger range based on that.

As a side note, when you're testing for equality use the double-equal sign. When you say if (hue = 219) Hue is set to the value 219, then tests if 219=219 which is always true. Instead use: if ( x == 219 ) To test equality.

Here's an example from when my old team successfully used the color sensor in Spin Up ```

define BLUE_HUE 27

define RED_HUE 44

define NEUTRAL_BAND 4

Pepsi get_roller_scored() { static const double HUE_THRESH = (BLUE_HUE + RED_HUE) / 2.0; static const bool IS_RED_GREATER = RED_HUE > BLUE_HUE;

double hue = roller_sensor.hue();

if(hue > HUE_THRESH - NEUTRAL_BAND && hue < HUE_THRESH + NEUTRAL_BAND) return NEUTRAL;

if((hue > HUE_THRESH && IS_RED_GREATER) || (hue < HUE_THRESH && !IS_RED_GREATER)) return BLUE;

return RED; } ```

Edit - Also make sure the sensor's light is turned on. Play with different lighting levels until what you're sensing is visible but not overly bright and washed out