diff --git a/PluralKit.API/Utils/JsonModelExt.cs b/PluralKit.API/Utils/JsonModelExt.cs
index d2cc3673..d6d6ddf9 100644
--- a/PluralKit.API/Utils/JsonModelExt.cs
+++ b/PluralKit.API/Utils/JsonModelExt.cs
@@ -77,7 +77,7 @@ namespace PluralKit.API
                 throw new JsonModelParseError("Member name can not be set to null.");
             
             if (o.ContainsKey("name")) member.Name = o.Value<string>("name").BoundsCheckField(Limits.MaxMemberNameLength, "Member name");
-            if (o.ContainsKey("color")) member.Color = o.Value<string>("color").NullIfEmpty();
+            if (o.ContainsKey("color")) member.Color = o.Value<string>("color").NullIfEmpty()?.ToLower();
             if (o.ContainsKey("display_name")) member.DisplayName = o.Value<string>("display_name").NullIfEmpty().BoundsCheckField(Limits.MaxMemberNameLength, "Member display name");
             if (o.ContainsKey("birthday"))
             {
diff --git a/PluralKit.Bot/Commands/MemberEdit.cs b/PluralKit.Bot/Commands/MemberEdit.cs
index 100465c2..b6243c42 100644
--- a/PluralKit.Bot/Commands/MemberEdit.cs
+++ b/PluralKit.Bot/Commands/MemberEdit.cs
@@ -87,7 +87,7 @@ namespace PluralKit.Bot
                 if (!Regex.IsMatch(color, "^[0-9a-fA-F]{6}$")) throw Errors.InvalidColorError(color);
             }
 
-            target.Color = color;
+            target.Color = color?.ToLower();
             await _data.SaveMember(target);
 
             await ctx.Reply($"{Emojis.Success} Member color {(color == null ? "cleared" : "changed")}.");
diff --git a/PluralKit.Core/Services/DataFileService.cs b/PluralKit.Core/Services/DataFileService.cs
index 3a0f6c50..f6a984c0 100644
--- a/PluralKit.Core/Services/DataFileService.cs
+++ b/PluralKit.Core/Services/DataFileService.cs
@@ -157,7 +157,7 @@ namespace PluralKit.Core
                 member.Name = dataMember.Name;
                 if (dataMember.DisplayName != null) member.DisplayName = dataMember.DisplayName;
                 if (dataMember.Description != null) member.Description = dataMember.Description;
-                if (dataMember.Color != null) member.Color = dataMember.Color;
+                if (dataMember.Color != null) member.Color = dataMember.Color.ToLower();
                 if (dataMember.AvatarUrl != null) member.AvatarUrl = dataMember.AvatarUrl;
                 if (dataMember.Prefix != null || dataMember.Suffix != null)
                 {