diff --git a/kindlecomicconverter/image.py b/kindlecomicconverter/image.py
index dab3f40..579c3fc 100755
--- a/kindlecomicconverter/image.py
+++ b/kindlecomicconverter/image.py
@@ -343,7 +343,15 @@ class ComicPage:
 
         # bias adjustment
         SPREAD_THRESHOLD = 5
-        if not self.opt.forcecolor and cb_spread < SPREAD_THRESHOLD and cr_spread < SPREAD_THRESHOLD:
+        if self.opt.forcecolor:
+            if any([
+                cb_nonzero[0] > 128,
+                cr_nonzero[0] > 128,
+                cb_nonzero[-1] < 128,
+                cr_nonzero[-1] < 128,
+            ]):
+                return True
+        elif cb_spread < SPREAD_THRESHOLD and cr_spread < SPREAD_THRESHOLD:
             return False
         
         # check for large amount of extreme colors
@@ -358,7 +366,7 @@ class ComicPage:
             return True
 
         # get ride of most jpg compression
-        cutoff = (2, 2)
+        cutoff = (3, 3)
         cb_hist, cr_hist = self.histograms_cutoff(cb, cr, cutoff)    
 
         cb_nonzero = [i for i, e in enumerate(cb_hist) if e]
@@ -368,11 +376,19 @@ class ComicPage:
 
         # bias adjustment
         SPREAD_THRESHOLD = 5
-        if not self.opt.forcecolor and cb_spread < SPREAD_THRESHOLD and cr_spread < SPREAD_THRESHOLD:
+        if self.opt.forcecolor:
+            if any([
+                cb_nonzero[0] > 128,
+                cr_nonzero[0] > 128,
+                cb_nonzero[-1] < 128,
+                cr_nonzero[-1] < 128,
+            ]):
+                return True
+        elif cb_spread < SPREAD_THRESHOLD and cr_spread < SPREAD_THRESHOLD:
             return False
 
-        # check for any amount of mild colors still remaining
-        DIFF_THRESHOLD = 6
+        # check for any amount of mild colors still remaining, 3 is barely enough, 2 is too high
+        DIFF_THRESHOLD = 3
         if any([
             cb_nonzero[0] <= 128 - DIFF_THRESHOLD, 
             cr_nonzero[0] <= 128 - DIFF_THRESHOLD,