diff --git a/recopytex/dashboard/common/formating.py b/recopytex/dashboard/common/formating.py
new file mode 100644
index 0000000..492a2fa
--- /dev/null
+++ b/recopytex/dashboard/common/formating.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+# encoding: utf-8
+
+
+def highlight_scores(highlight_columns, score_color):
+    """ Cells style in a datatable for scores
+
+    :param highlight_columns: columns to highlight
+    :param value_color: dictionnary {"score": "color"}
+
+    """
+    hight = []
+    for v, color in score_color.items():
+        if v:
+            hight += [
+                {
+                    "if": {"filter_query": "{{{}}} = {}".format(col, v), "column_id": col},
+                    "backgroundColor": color,
+                    "color": "white",
+                }
+                for col in highlight_columns
+            ]
+    return hight
diff --git a/recopytex/dashboard/pages/exams_scores/callbacks.py b/recopytex/dashboard/pages/exams_scores/callbacks.py
index b6ed1de..5cc8b30 100644
--- a/recopytex/dashboard/pages/exams_scores/callbacks.py
+++ b/recopytex/dashboard/pages/exams_scores/callbacks.py
@@ -8,8 +8,16 @@ import dash_table
 import json
 import pandas as pd
 
-from ...app import app
-from .models import get_tribes, get_exams, get_unstack_scores, get_students_from_exam
+from recopytex.dashboard.app import app
+from recopytex.dashboard.common.formating import highlight_scores
+
+from .models import (
+    get_tribes,
+    get_exams,
+    get_unstack_scores,
+    get_students_from_exam,
+    get_score_colors,
+)
 
 
 @app.callback(
@@ -57,11 +65,15 @@ def update_scores_store(exam):
         "score_rate",
         "is_leveled",
     ]
-    columns = fixed_columns + list(get_students_from_exam(exam))
+
+    students = list(get_students_from_exam(exam))
+    columns = fixed_columns + students
+
+    score_color = get_score_colors()
 
     return [
         [{"id": c, "name": c} for c in columns],
         scores.to_dict("records"),
-        [],
+        highlight_scores(students, score_color),
         {"headers": True, "data": len(fixed_columns)},
     ]
diff --git a/recopytex/dashboard/pages/exams_scores/models.py b/recopytex/dashboard/pages/exams_scores/models.py
index e3386af..da3d446 100644
--- a/recopytex/dashboard/pages/exams_scores/models.py
+++ b/recopytex/dashboard/pages/exams_scores/models.py
@@ -28,3 +28,11 @@ def get_unstack_scores(exam):
 def get_students_from_exam(exam):
     flat_scores = LOADER.get_exam_scores(exam)
     return flat_scores["student_name"].unique()
+
+
+def get_score_colors():
+    scores_config = LOADER.get_config()["valid_scores"]
+    score_color = {}
+    for key, score in scores_config.items():
+        score_color[score["value"]] = score["color"]
+    return score_color