MATLAB: Color based on variables

I'm trying to do color grading based on x axis valeus

here is the script I'm trying to type

%% scattering sst against wind speed

h(1) = figure;

x = reshape(mean_MAx_SST,[],1);

y = reshape(mean_MAx_W,[],1);

z = reshape(Alat,[],1);

m = 20; %size

szv = repmat(m,length(x),1);

CV = jet (length(x));

scatter3 (x,y,z,szv,CV,'filled');

grid on

hold on

colormap (jet)

xlabel ('Mean SSTmax')

ylabel ('Wind speed m/s')

zlabel ('Lattitudes')

colorbar('Direction','reverse')

title (colorbar,'SST Degrees C')

xmin = min(x(:));

xmax = max(x(:));

caxis([xmin,xmax]);

xticks(29:0.1:31.5)

%%%%%%%%%%%%%%%%%%

The result is illogic fro me

I don't know what was my mistake