While Loop is not ending, just keeps repeating from top

I am trying to create a guessing game where the user chooses from 3 colours, this is my script so far.

colour = {'Red','Green','Blue'}

x=colour{randi(numel(colour))}

guess = 0

while guess ~= 1

      guess = input('Guess the colour, is it Red, Green, or Blue? ','s')
      if(strcmp(guess,x)==1)
          continue
      else
          display('Incorrect')
      end
  end
  display('Correct')

Forgive my lack of not knowing how to organise this post a little better and thankyou in advance for your answers.

Answer 1

[James Tursa]

Some slight changes:

colour = {'Red','Green','Blue'}
x=colour{randi(numel(colour))}; % <-- Added semi-colon so you don't print answer
% guess = 0  <-- don't need this
while( true )  % <-- changed condition
      guess = input('Guess the colour, is it Red, Green, or Blue? ','s')
      if(strcmp(guess,x)==1)
          break; % <-- changed continue to break
      else
          display('Incorrect')
      end
  end
  display('Correct')

[Nicholas Nightingale]

Thanks very much, if you wouldn't mind me asking what is the main difference between 'Break' and 'Continue'?

[James Tursa]

continue means to immediately go to the top of the loop and start the next iteration of the loop.

break means to break out of the loop and start executing at the line immediately after the end of the loop.