How to create concentric circles?

Hello, I want to generate a series of concentric circles by filling each ring with a different color. The result I want to obtain is similar to the figure. With the code I present, I get the figure 2. How could I assign a color to each ring between the circles?

Thanks in advance

clear;
clc;
close all

x_center = 0;
y_center = 0;

pellet = 0.3355;
gap = 0.350;
w14re = 0.354;
re = 0.355;
clad = 0.455;
sicfib = 0.458;
radius_array = [pellet gap w14re re clad sicfib];
for i = 1:5
    
	radius = 5;
	theta = 0:pi/50:2*pi;
	x_circle_1 = radius_array(i) * cos(theta) + x_center;
	y_circle_1 = radius_array(i) * sin(theta) + y_center;
	
	x_circle_2 = radius_array(i+1) * cos(theta) + x_center;
	y_circle_2 = radius_array(i+1) * sin(theta) + y_center;
	fig1 = plot(x_circle_1, y_circle_1, 'k-', 'LineWidth', 0.5);
	hold on
	fig2 = plot(x_circle_2, y_circle_2, 'k-', 'LineWidth', 0.5);
    
	hold on
	axis equal
	axis off
    
end

Answer 1

[Star Strider]

x_center = 0;
y_center = 0;

pellet = 0.3355;
gap = 0.350;
w14re = 0.354;
re = 0.355;
clad = 0.455;
sicfib = 0.458;
radius_array = [pellet gap w14re re clad sicfib]

radius_array = 1×6

0.3355 0.3500 0.3540 0.3550 0.4550 0.4580

cm = turbo(numel(radius_array));                                % Choose The Appropriate 'colormap' 

for i = 1:5
    
	radius = 5;
	theta = 0:pi/50:2*pi;
	x_circle_1 = radius_array(i) * cos(theta) + x_center;
	y_circle_1 = radius_array(i) * sin(theta) + y_center;
	
	x_circle_2 = radius_array(i+1) * cos(theta) + x_center;
	y_circle_2 = radius_array(i+1) * sin(theta) + y_center;
	fig1 = plot(x_circle_1, y_circle_1, 'k-', 'LineWidth', 0.5);
	hold on
	fig2 = plot(x_circle_2, y_circle_2, 'k-', 'LineWidth', 0.5);
        
        patch([x_circle_1, fliplr(x_circle_2)], [y_circle_1, fliplr(y_circle_2)],cm(i,:), 'EdgeColor',cm(i,:))
        
	hold on
	axis equal
	axis off
    
end

Note —

In the patch call, the EdgeColor is the color of the patch it encloses. To eliminate the edge colours instead, specify 'none' instead of cm(i,:).

.

[Yro]

Great, it works. Thank you very much for your help.

[Star Strider]

As always, my pleasure!