diff --git a/AAPullToRefresh/AAPullToRefresh.h b/AAPullToRefresh/AAPullToRefresh.h
index 8b89034..016e296 100644
--- a/AAPullToRefresh/AAPullToRefresh.h
+++ b/AAPullToRefresh/AAPullToRefresh.h
@@ -26,6 +26,7 @@ typedef NS_ENUM(NSUInteger, AAPullToRefreshPosition) {
 @property (nonatomic, assign) CGFloat threshold;
 @property (nonatomic, strong) UIImage *imageIcon;
 @property (nonatomic, strong) UIColor *borderColor;
+@property (nonatomic, strong) UIColor *inactiveBorderColor;
 @property (nonatomic, assign) CGFloat borderWidth;
 
 - (id)initWithImage:(UIImage *)image position:(AAPullToRefreshPosition)position;
diff --git a/AAPullToRefresh/AAPullToRefresh.m b/AAPullToRefresh/AAPullToRefresh.m
index 01a3818..6b60727 100644
--- a/AAPullToRefresh/AAPullToRefresh.m
+++ b/AAPullToRefresh/AAPullToRefresh.m
@@ -40,6 +40,8 @@ @interface AAPullToRefreshBackgroundLayer : CALayer
 
 @property (nonatomic, assign) CGFloat outlineWidth;
 @property (nonatomic, assign, getter = isGlow) BOOL glow;
+@property (nonatomic, strong) UIColor *inactiveBorderColor;
+
 - (id)initWithBorderWidth:(CGFloat)width;
 
 @end
@@ -67,7 +69,7 @@ - (void)drawInContext:(CGContextRef)ctx
     CGContextFillEllipseInRect(ctx,CGRectInset(self.bounds, self.outlineWidth, self.outlineWidth));
     
     //Draw circle outline
-    CGContextSetStrokeColorWithColor(ctx, [UIColor colorWithWhite:0.4f alpha:0.9f].CGColor);
+    CGContextSetStrokeColorWithColor(ctx, self.inactiveBorderColor.CGColor);
     CGContextSetLineWidth(ctx, self.outlineWidth);
     CGContextStrokeEllipseInRect(ctx, CGRectInset(self.bounds, self.outlineWidth, self.outlineWidth));
 }
@@ -104,6 +106,16 @@ @interface AAPullToRefresh()
 
 @implementation AAPullToRefresh
 
+- (void)setInactiveBorderColor:(UIColor *)inactiveBorderColor
+{
+    self.backgroundLayer.inactiveBorderColor = inactiveBorderColor;
+}
+
+- (UIColor*)inactiveBorderColor
+{
+    return self.backgroundLayer.inactiveBorderColor;
+}
+
 #pragma mark - init
 - (id)initWithImage:(UIImage *)image position:(AAPullToRefreshPosition)position
 {
@@ -139,6 +151,7 @@ - (void)_commonInit
     backgroundLayer.frame = self.bounds;
     [self.layer addSublayer:backgroundLayer];
     self.backgroundLayer = backgroundLayer;
+    self.inactiveBorderColor = [UIColor colorWithWhite:0.4f alpha:0.9f];
     
     if (!self.imageIcon)
         self.imageIcon = [UIImage imageNamed:@"centerIcon"];
@@ -467,4 +480,9 @@ - (void)setBorderColor:(UIColor *)borderColor
     _shapeLayer.strokeColor = _borderColor.CGColor;
 }
 
+-(void)dealloc
+{
+    [self.scrollView removeObserver:self forKeyPath:@"contentOffset"];
+}
+
 @end