diff --git a/public/index.html b/public/index.html
index 2786830805f63ca7436be14656a952ed34ce5496..4e55a3684d0b61230a7640c98da8a755f4e52912 100644
--- a/public/index.html
+++ b/public/index.html
@@ -193,7 +193,7 @@
                 <b>Other colours</b>
               </div>
               <label id="colours">
-                <input id="other-colours" type="color" value="blue" />
+                <input id="other-colours" type="color" value="#0000ff" />
               </label>
             </div>
           </div>
diff --git a/src/canvas.js b/src/canvas.js
index a03c9d5bf1afa0ee17ed11beddac9da7829fb19c..5aceb59fdb0b37a8a7b7b7749204d627a87f3b16 100644
--- a/src/canvas.js
+++ b/src/canvas.js
@@ -16,7 +16,7 @@ const lineFn = line()
 
 const pathGroupElems = new Map()
 
-let strokeColour = "blue"
+let strokeColour = "#0000ff"
 let strokeRadius = 5
 
 const MAX_POINT_DISTANCE = 5