diff --git a/htdocs/core/lib/usergroups.lib.php b/htdocs/core/lib/usergroups.lib.php
index 7da112fa255..630ad5c796e 100644
--- a/htdocs/core/lib/usergroups.lib.php
+++ b/htdocs/core/lib/usergroups.lib.php
@@ -947,5 +947,44 @@ function show_theme($fuser, $edit = 0, $foruserprofile = false)
 	    */
 	}
 
+
+	// Use MAIN_OPTIMIZEFORTEXTBROWSER
+	if ($foruserprofile)
+	{
+		//$default=yn($conf->global->MAIN_OPTIMIZEFORCOLORBLIND);
+		$default=$langs->trans('No');
+		print '<tr class="oddeven">';
+		print '<td>'.$langs->trans("MAIN_OPTIMIZEFORCOLORBLIND").'</td>';
+		print '<td colspan="'.($colspan-1).'">';
+
+		$colorBlindOptions = array(
+			'none' => $langs->trans('No'),
+			'protanopia' => $langs->trans('Protanopia'),
+			'deuteranopes' => $langs->trans('Deuteranopes'),
+			'tritanopes' => $langs->trans('Tritanopes'),
+		);
+
+		if ($edit)
+		{
+			print $form->selectArray('MAIN_OPTIMIZEFORCOLORBLIND', $colorBlindOptions, $fuser->conf->MAIN_OPTIMIZEFORCOLORBLIND, 0);
+		}
+		else
+		{
+			if (!empty($fuser->conf->MAIN_OPTIMIZEFORCOLORBLIND) && isset($colorBlindOptions[$fuser->conf->MAIN_OPTIMIZEFORCOLORBLIND])){
+				print $colorBlindOptions[$fuser->conf->MAIN_OPTIMIZEFORCOLORBLIND];
+			}
+			else{
+				print yn(0);
+			}
+		}
+		print ' &nbsp; ('.$langs->trans("Default").': <strong>'.$default.'</strong>) ';
+		print $form->textwithpicto('', $langs->trans("MAIN_OPTIMIZEFORCOLORBLINDDesc"));
+		print '</td>';
+		print '</tr>';
+	}
+	else
+	{
+
+	}
 	print '</table>';
 }
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 0f22d42327c..48d4d898de6 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -1900,6 +1900,11 @@ OnMobileOnly=On small screen (smartphone) only
 DisableProspectCustomerType=Disable the "Prospect + Customer" third party type (so third party must be Prospect or Customer but can't be both)
 MAIN_OPTIMIZEFORTEXTBROWSER=Simplify interface for blind person
 MAIN_OPTIMIZEFORTEXTBROWSERDesc=Enable this option if you are a blind person, or if you use the application from a text browser like Lynx or Links.
+MAIN_OPTIMIZEFORCOLORBLIND=Change  interface's color for color blind person
+MAIN_OPTIMIZEFORCOLORBLINDDesc=Enable this option if you are a color blind person, in some case interface will change color setup to increase contrast.
+Protanopia=Protanopia
+Deuteranopes=Deuteranopes
+Tritanopes=Tritanopes
 ThisValueCanOverwrittenOnUserLevel=This value can be overwritten by each user from its user page - tab '%s'
 DefaultCustomerType=Default thirdparty type for "New customer" creation form
 ABankAccountMustBeDefinedOnPaymentModeSetup=Note: The bank account must be defined on the module of each payment mode (Paypal, Stripe, ...) to have this feature working.
diff --git a/htdocs/user/param_ihm.php b/htdocs/user/param_ihm.php
index 90228aa952e..c33c26fa95b 100644
--- a/htdocs/user/param_ihm.php
+++ b/htdocs/user/param_ihm.php
@@ -152,6 +152,12 @@ if (empty($reshook)) {
 			    $tabparam["MAIN_OPTIMIZEFORTEXTBROWSER"] = 0;
 			}
 
+			if (GETPOST('MAIN_OPTIMIZEFORCOLORBLIND')) {
+				$tabparam["MAIN_OPTIMIZEFORCOLORBLIND"] = GETPOST('MAIN_OPTIMIZEFORCOLORBLIND');
+			} else {
+				$tabparam["MAIN_OPTIMIZEFORCOLORBLIND"] = 0;
+			}
+
 			$result = dol_set_user_param($db, $conf, $object, $tabparam);
 
 			header('Location: ' . $_SERVER["PHP_SELF"] . '?id=' . $id);