diff --git a/src/app/reducers/cameraSettingsReducer.ts b/src/app/reducers/cameraSettingsReducer.ts
index c5db67e..0f9fd6d 100644
--- a/src/app/reducers/cameraSettingsReducer.ts
+++ b/src/app/reducers/cameraSettingsReducer.ts
@@ -71,6 +71,16 @@ export const cameraSettingsReducer = (state: CameraSettings, action: CameraSetti
         ...state,
         cameraControls: action.payload,
       };
+
+    case "RESET_REGION_PAINTER":
+      return {
+        ...state,
+        regionPainter: {
+          ...state.regionPainter,
+          paintedCells: new Map(),
+          paintMode: "painter",
+        },
+      };
     default:
       return state;
   }
diff --git a/src/features/setup/components/cameraControls/CameraControls.tsx b/src/features/setup/components/cameraControls/CameraControls.tsx
index 060d3bc..d8a30fe 100644
--- a/src/features/setup/components/cameraControls/CameraControls.tsx
+++ b/src/features/setup/components/cameraControls/CameraControls.tsx
@@ -58,7 +58,7 @@ const CameraControls = ({ state, dispatch }: CameraControlProps) => {
       {({ values }) => (
         <Form className="flex flex-col gap-5 border border-gray-500 p-4 rounded-md mt-[2%]">
           <h2 className="text-2xl mb-2">Controls</h2>
-          <div className="flex flex-row gap-4">
+          <div className="flex flex-row gap-1 md:gap-4">
             <div>
               <label
                 htmlFor="auto"
diff --git a/src/features/setup/components/region/Region.tsx b/src/features/setup/components/region/Region.tsx
index 866bcd4..4f88d27 100644
--- a/src/features/setup/components/region/Region.tsx
+++ b/src/features/setup/components/region/Region.tsx
@@ -1,6 +1,7 @@
 import { useCameraSettingsContext } from "../../../../app/context/CameraSettingsContext";
 import SliderComponent from "../../../../components/ui/SliderComponent";
 import type { CameraSettings } from "../../../../utils/types";
+import { useTargetDetection } from "../../hooks/useTargetDetection";
 
 type RegionProps = {
   state: CameraSettings;
@@ -8,9 +9,11 @@ type RegionProps = {
 
 const Region = ({ state }: RegionProps) => {
   const { dispatch } = useCameraSettingsContext();
+  const { mutation } = useTargetDetection();
   const paintMode = state.regionPainter.paintMode;
   const regions = state.regionPainter.regions;
   const brushSize = state.regionPainter.brushSize;
+  const paintedCells = state.regionPainter.paintedCells;
 
   const handleChangePaintMode = (event: React.ChangeEvent<HTMLInputElement>) => {
     const mode = event.target.value as "painter" | "eraser";
@@ -24,7 +27,47 @@ const Region = ({ state }: RegionProps) => {
   };
 
   const handleSaveClick = () => {
-    console.log(state);
+    const paintedRegions = [];
+    const paintedCellsArray = Array.from(paintedCells.entries());
+    const region1 = paintedCellsArray.filter(([, cell]) => cell.region.name === "Region 1");
+    const region2 = paintedCellsArray.filter(([, cell]) => cell.region.name === "Region 2");
+    const region3 = paintedCellsArray.filter(([, cell]) => cell.region.name === "Region 3");
+
+    const region1Data = {
+      id: 1,
+      cells: region1.map(([key]) => [parseInt(key.split("-")[1]), parseInt(key.split("-")[0])]),
+    };
+
+    const region2Data = {
+      id: 2,
+      cells: region2.map(([key]) => [parseInt(key.split("-")[1]), parseInt(key.split("-")[0])]),
+    };
+
+    const region3Data = {
+      id: 3,
+      cells: region3.map(([key]) => [parseInt(key.split("-")[1]), parseInt(key.split("-")[0])]),
+    };
+
+    if (region1Data.cells.length > 0) {
+      paintedRegions.push(region1Data);
+    }
+
+    if (region2Data.cells.length > 0) {
+      paintedRegions.push(region2Data);
+    }
+
+    if (region3Data.cells.length > 0) {
+      paintedRegions.push(region3Data);
+    }
+    dispatch({ type: "SET_REGION_PAINTMODE", payload: "painter" });
+    mutation.mutate({ regions: paintedRegions });
+  };
+
+  const handleResetClick = () => {
+    paintedCells.clear();
+    dispatch({ type: "SET_REGION_PAINTMODE", payload: "painter" });
+    dispatch({ type: "RESET_REGION_PAINTER" });
+    mutation.mutate({ regions: [] });
   };
   return (
     <div className="flex flex-col gap-4 mt-[2%]">
@@ -88,28 +131,30 @@ const Region = ({ state }: RegionProps) => {
             {regions.map((region, idx) => {
               const inputID = `region-${idx}`;
               return (
-                <label
-                  htmlFor={inputID}
-                  key={region.name}
-                  className={`items-center p-4 m-1 rounded-xl border flex flex-row justify-between
+                <div className="my-2 md:my-4">
+                  <label
+                    htmlFor={inputID}
+                    key={region.name}
+                    className={`items-center p-4 m-1 rounded-xl border flex flex-row justify-between
                   ${state.regionPainter.selectedRegionIndex === idx ? "border-gray-400 bg-[#202b36]" : "bg-[#253445] border-gray-700"} hover:bg-[#202b36] hover:cursor-pointer`}
-                >
-                  <div className="flex flex-row gap-4 items-center">
-                    <input
-                      type="radio"
-                      id={inputID}
-                      checked={state.regionPainter.selectedRegionIndex === idx}
-                      name="region"
-                      className="sr-only"
-                      onChange={() => {
-                        handlePaintMode("painter");
-                        handleChangeRegion(idx);
-                      }}
-                    />
-                    <span className="text-lg">{region.name}</span>
-                    <div className="w-6 h-6 rounded mt-1" style={{ backgroundColor: region.brushColour }}></div>
-                  </div>
-                </label>
+                  >
+                    <div className="flex flex-row gap-4 items-center">
+                      <input
+                        type="radio"
+                        id={inputID}
+                        checked={state.regionPainter.selectedRegionIndex === idx}
+                        name="region"
+                        className="sr-only"
+                        onChange={() => {
+                          handlePaintMode("painter");
+                          handleChangeRegion(idx);
+                        }}
+                      />
+                      <span className="text-lg">{region.name}</span>
+                      <div className="w-6 h-6 rounded mt-1" style={{ backgroundColor: region.brushColour }}></div>
+                    </div>
+                  </label>
+                </div>
               );
             })}
           </div>
@@ -124,7 +169,12 @@ const Region = ({ state }: RegionProps) => {
           >
             Save
           </button>
-          <button className="p-2 rounded-lg bg-gray-500 text-white w-[40%] mt-2">Reset</button>
+          <button
+            className="p-2 rounded-lg bg-gray-500 text-white w-[40%] mt-2 hover:bg-gray-700 cursor-pointer"
+            onClick={handleResetClick}
+          >
+            Reset
+          </button>
         </div>
       </div>
     </div>
diff --git a/src/features/setup/hooks/useTargetDetection.ts b/src/features/setup/hooks/useTargetDetection.ts
new file mode 100644
index 0000000..748aafd
--- /dev/null
+++ b/src/features/setup/hooks/useTargetDetection.ts
@@ -0,0 +1,30 @@
+import { useMutation } from "@tanstack/react-query";
+import type { ColourDetectionPayload } from "../../../utils/types";
+import { cambase } from "../../../app/config";
+
+const sendTargetDetectionData = async (regionData: ColourDetectionPayload) => {
+  const regions = {
+    regions: regionData.regions,
+  };
+  const response = await fetch(`${cambase}/TargetDetectionColour-region-update`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify(regions),
+  });
+
+  if (!response.ok) {
+    throw new Error("Failed to send target detection data");
+  }
+  return response.json();
+};
+
+export const useTargetDetection = () => {
+  const mutation = useMutation({
+    mutationKey: ["colour detection"],
+    mutationFn: (regionData: ColourDetectionPayload) => sendTargetDetectionData(regionData),
+  });
+
+  return { mutation };
+};
diff --git a/src/utils/types.ts b/src/utils/types.ts
index b3a21bb..0cfdf98 100644
--- a/src/utils/types.ts
+++ b/src/utils/types.ts
@@ -118,6 +118,9 @@ export type CameraSettingsAction =
   | {
       type: "SET_BRUSH_SIZE";
       payload: number;
+    }
+  | {
+      type: "RESET_REGION_PAINTER";
     };
 
 export type CameraStatus = {
@@ -141,3 +144,12 @@ export type StoreData = {
   sanityCheck: boolean;
   sanityCheckFormula: string;
 };
+
+export type ColourData = {
+  id: string | number;
+  cells: number[][];
+};
+
+export type ColourDetectionPayload = {
+  regions: ColourData[];
+};