diff --git a/backend/library/libraries/critical_risk_matrix_3x3.yaml b/backend/library/libraries/critical_risk_matrix_3x3.yaml
index ba72f3327..4d27a220c 100644
--- a/backend/library/libraries/critical_risk_matrix_3x3.yaml
+++ b/backend/library/libraries/critical_risk_matrix_3x3.yaml
@@ -16,22 +16,28 @@ objects:
         - abbreviation: L
           name: Low
           description: Unfrequent event
+          hexcolor: '#92D050'
         - abbreviation: M
           name: Medium
           description: Occasional event
+          hexcolor: '#FFFF00'
         - abbreviation: H
           name: High
           description: Frequent event
+          hexcolor: '#FF0000'
       impact:
         - abbreviation: L
           name: Low
           description: Low impact
+          hexcolor: '#92D050'
         - abbreviation: M
           name: Medium
           description: Medium impact
+          hexcolor: '#FFFF00'
         - abbreviation: H
           name: High
           description: High impact
+          hexcolor: '#FF0000'
       risk:
         - abbreviation: L
           name: Low
diff --git a/backend/library/libraries/critical_risk_matrix_5x5.yaml b/backend/library/libraries/critical_risk_matrix_5x5.yaml
index 89c3c7f10..44933f1f0 100644
--- a/backend/library/libraries/critical_risk_matrix_5x5.yaml
+++ b/backend/library/libraries/critical_risk_matrix_5x5.yaml
@@ -16,34 +16,44 @@ objects:
         - abbreviation: VL
           name: Very Low
           description: Very unfrequent event
+          hexcolor: '#BBF7D0'
         - abbreviation: L
           name: Low
           description: Unfrequent event
+          hexcolor: '#BEF264'
         - abbreviation: M
           name: Medium
           description: Occasional event
+          hexcolor: '#FEF08A'
         - abbreviation: H
           name: High
           description: Frequent event
+          hexcolor: '#FBBF24'
         - abbreviation: VH
           name: Very High
           description: Very frequent event
+          hexcolor: '#F87171'
       impact:
         - abbreviation: VL
           name: Very Low
           description: Very low impact
+          hexcolor: '#BBF7D0'
         - abbreviation: L
           name: Low
           description: Low impact
+          hexcolor: '#BEF264'
         - abbreviation: M
           name: Medium
           description: Medium impact
+          hexcolor: '#FEF08A'
         - abbreviation: H
           name: High
           description: High impact
+          hexcolor: '#FBBF24'
         - abbreviation: VH
           name: Very High
           description: Very high impact
+          hexcolor: '#F87171'
       risk:
         - abbreviation: VL
           name: Very Low
diff --git a/backend/library/libraries/matrice-des-risques-critiques-3x3.yaml b/backend/library/libraries/matrice-des-risques-critiques-3x3.yaml
index 64d7b0323..e980d6f8c 100644
--- a/backend/library/libraries/matrice-des-risques-critiques-3x3.yaml
+++ b/backend/library/libraries/matrice-des-risques-critiques-3x3.yaml
@@ -16,22 +16,28 @@ objects:
         - abbreviation: F
           name: Faible
           description: Événement peu fréquent
+          hexcolor: '#92D050'
         - abbreviation: M
           name: Moyen
           description: Événement occasionnel
+          hexcolor: '#FFFF00'
         - abbreviation: E
           name: Élevé
           description: Événement fréquent
+          hexcolor: '#FF0000'
       impact:
         - abbreviation: F
           name: Faible
           description: Impact faible
+          hexcolor: '#92D050'
         - abbreviation: M
           name: Moyen
           description: Impact moyen
+          hexcolor: '#FFFF00'
         - abbreviation: E
           name: Élevé
           description: Impact élevé
+          hexcolor: '#FF0000'
       risk:
         - abbreviation: F
           name: Faible
diff --git a/backend/library/libraries/matrice-des-risques-critiques-5x5.yaml b/backend/library/libraries/matrice-des-risques-critiques-5x5.yaml
index 61aa35815..11fa83624 100644
--- a/backend/library/libraries/matrice-des-risques-critiques-5x5.yaml
+++ b/backend/library/libraries/matrice-des-risques-critiques-5x5.yaml
@@ -16,34 +16,44 @@ objects:
         - abbreviation: TF
           name: Très faible
           description: Événement très peu fréquent
+          hexcolor: '#BBF7D0'
         - abbreviation: F
           name: Faible
           description: Événement peu fréquent
+          hexcolor: '##BEF264'
         - abbreviation: M
           name: Moyen
           description: Événement occasionnel
+          hexcolor: '#FEF08A'
         - abbreviation: E
           name: Élevé
           description: Événement fréquent
+          hexcolor: '#FBBF24'
         - abbreviation: TE
           name: Très élevé
           description: Événement très fréquent
+          hexcolor: '#F87171'
       impact:
         - abbreviation: TF
           name: Très faible
           description: Impact très faible
+          hexcolor: '#BBF7D0'
         - abbreviation: F
           name: Faible
           description: Impact faible
+          hexcolor: '#BEF264'
         - abbreviation: M
           name: Moyen
           description: Impact moyen
+          hexcolor: '#FEF08A'
         - abbreviation: E
           name: Élevé
           description: Impact élevé
+          hexcolor: '#FBBF24'
         - abbreviation: TE
           name: Très élevé
           description: Impact très élevé
+          hexcolor: '#F87171'
       risk:
         - abbreviation: TF
           name: Très faible
diff --git a/backend/library/libraries/risk-matrix-4x4-pgssi-s-1.0.yaml b/backend/library/libraries/risk-matrix-4x4-pgssi-s-1.0.yaml
index 3ab7926d0..2821313b6 100644
--- a/backend/library/libraries/risk-matrix-4x4-pgssi-s-1.0.yaml
+++ b/backend/library/libraries/risk-matrix-4x4-pgssi-s-1.0.yaml
@@ -18,28 +18,36 @@ objects:
         - abbreviation: 1
           name: Exceptionnel
           description: Evènement Exceptionnel
+          hexcolor: '#02A45A'
         - abbreviation: 2
           name: Peu probable
           description: Evènement Peu probable
+          hexcolor: '#FFCE02'
         - abbreviation: 3
           name: Possible
           description: Evènement Possible
+          hexcolor: '#FFA600'
         - abbreviation: 4
           name: Quasi certain
           description: Evènement Quasi certain
+          hexcolor: '#FF1A00'
       impact:
         - abbreviation: 1
           name: Mineure
           description: Gravité Mineure
+          hexcolor: '#02A45A'
         - abbreviation: 2
           name: Significatif
           description: Gravité Significative
+          hexcolor: '#FFCE02'
         - abbreviation: 3
           name: Importante
           description: Gravité Importante
+          hexcolor: '#FFA600'
         - abbreviation: 4
           name: Critique
           description: Gravité Critique
+          hexcolor: '#FF1A00'
       risk:
         - abbreviation: 1
           name: Limité
diff --git a/backend/library/libraries/risk-matrix-5x5-sensitive.yaml b/backend/library/libraries/risk-matrix-5x5-sensitive.yaml
index e4ec0b12e..eb8ecaf4e 100644
--- a/backend/library/libraries/risk-matrix-5x5-sensitive.yaml
+++ b/backend/library/libraries/risk-matrix-5x5-sensitive.yaml
@@ -18,43 +18,53 @@ objects:
       abbreviation: AC
       name: rare
       description: rare
+      hexcolor: '#BBF7D0'
     - id: 1
       abbreviation: LI
       name: unlikely
       description: unlikely
+      hexcolor: '#BEF264'
     - id: 2
       abbreviation: MO
       name: moderate
       description: moderate
+      hexcolor: '#FEF08A'
     - id: 3
       abbreviation: UN
       name: likely
       description: likely
+      hexcolor: '#FBBF24'
     - id: 4
       abbreviation: RA
       name: almost certain
       description: almost certain
+      hexcolor: '#F87171'
     impact:
     - id: 0
       abbreviation: IN
       name: insignificant
       description: insignificant
+      hexcolor: '#BBF7D0'
     - id: 1
       abbreviation: MI
       name: minor
       description: minor
+      hexcolor: '#BEF264'
     - id: 2
       abbreviation: SI
       name: significant
       description: significant
+      hexcolor: '#FEF08A'
     - id: 3
       abbreviation: MA
       name: major
       description: major
+      hexcolor: '#FBBF24'
     - id: 4
       abbreviation: SE
       name: severe
       description: severe
+      hexcolor: '#F87171'
     risk:
     - id: 0
       abbreviation: LO