diff --git a/active_projects/eop/pascal.py b/active_projects/eop/pascal.py
index 688d3a5e..ad2a0819 100644
--- a/active_projects/eop/pascal.py
+++ b/active_projects/eop/pascal.py
@@ -10,21 +10,6 @@ GRADE_COLOR_1 = RED
 GRADE_COLOR_2 = BLUE
 
 
-def rainbow_color(alpha):
-    nb_colors = 100
-    rainbow = color_gradient([RED, ORANGE, YELLOW, GREEN, BLUE, PURPLE], nb_colors)
-    rainbow = np.append(rainbow,PURPLE)
-    index = int(alpha * nb_colors)
-    return rainbow[index]
-
-def graded_color(n,k):
-    if n != 0:
-        alpha = float(k)/n
-    else:
-        alpha = 0.5
-    color = interpolate_color(GRADE_COLOR_1, GRADE_COLOR_2, alpha)
-    return color
-
 
 def graded_square(n,k):
     return Square(