diff --git a/types/jspdf/index.d.ts b/types/jspdf/index.d.ts
index 0647aae54c..bd9f6e6ab3 100644
--- a/types/jspdf/index.d.ts
+++ b/types/jspdf/index.d.ts
@@ -72,9 +72,12 @@ declare module 'jspdf' {
         getFontList():any;
         addFont(postScriptName:string, fontName:string, fontStyle:string):string;
         setLineWidth(width:number):jsPDF;
-        setDrawColor(ch1:number|string, ch2?:number, ch3?:number, ch4?:number):jsPDF;
-        setFillColor(ch1:number|string, ch2?:number, ch3?:number, ch4?:number):jsPDF;
-        setTextColor(r?:number, g?:number, b?:number):jsPDF;
+        setDrawColor(ch1:number|string):jsPDF;
+        setDrawColor(ch1:number, ch2:number, ch3:number, ch4?:number):jsPDF;
+        setFillColor(ch1:number|string):jsPDF;
+        setFillColor(ch1:number, ch2:number, ch3:number, ch4?:number):jsPDF;
+        setTextColor(ch1:number|string):jsPDF;
+        setTextColor(ch1:number, ch2:number, ch3:number, ch4?: number):jsPDF;
         setLineCap(style:string|number):jsPDF;
         setLineJoin(style:string|number):jsPDF;
         output(type?:string, options?:any):any;
diff --git a/types/jspdf/jspdf-tests.ts b/types/jspdf/jspdf-tests.ts
index 3b930f8526..aaf57c5ca3 100644
--- a/types/jspdf/jspdf-tests.ts
+++ b/types/jspdf/jspdf-tests.ts
@@ -95,6 +95,8 @@ function test_text_colors() {
     doc.text(20, 50, 'This is green.');
     doc.setTextColor(0, 0, 255);
     doc.text(20, 60, 'This is blue.');
+    doc.setTextColor('#FF0000');
+    doc.text(20, 60, 'This is red.');
     doc.save('Test.pdf');
 }
 
@@ -174,9 +176,9 @@ function test_rect_squares() {
     doc.setDrawColor(0);
     doc.setFillColor(255, 0, 0);
     doc.rect(120, 20, 10, 10, 'FD'); // filled red square with black borders
-    doc.setDrawColor(0);
-    doc.setFillColor(255, 255, 255);
-    doc.roundedRect(140, 20, 10, 10, 3, 3, 'FD'); //  Black sqaure with rounded corners
+    doc.setDrawColor('#000');
+    doc.setFillColor('#FFFFFF');
+    doc.roundedRect(140, 20, 10, 10, 3, 3, 'FD'); //  Black square with rounded corners
     doc.save('Test.pdf');
 }