diff --git a/docs/resources/tag.md b/docs/resources/tag.md
index 4f7cfe9..c5c6a37 100644
--- a/docs/resources/tag.md
+++ b/docs/resources/tag.md
@@ -18,12 +18,12 @@ Flagsmith Tag
 ### Required
 
 - `project_uuid` (String) UUID of project the tag belongs to
-- `tag_colour` (String) Hexadecimal value of the tag color
 - `tag_name` (String) Name of the tag
 
 ### Optional
 
 - `description` (String) Description of the feature
+- `tag_colour` (String) Colour for this tag, as accepted by [color-string](https://github.com/Qix-/color-string).
 
 ### Read-Only
 
diff --git a/flagsmith/resource_tag.go b/flagsmith/resource_tag.go
index 83eff9e..ef699e2 100644
--- a/flagsmith/resource_tag.go
+++ b/flagsmith/resource_tag.go
@@ -7,6 +7,7 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/path"
 	"github.com/hashicorp/terraform-plugin-framework/resource"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringdefault"
 	"strings"
 
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/int64planmodifier"
@@ -75,8 +76,10 @@ func (t *tagResource) Schema(ctx context.Context, req resource.SchemaRequest, re
 				MarkdownDescription: "Name of the tag",
 			},
 			"tag_colour": schema.StringAttribute{
-				Required:            true,
-				MarkdownDescription: "Hexadecimal value of the tag color",
+				Computed:            true,
+				Optional:            true,
+				Default:             stringdefault.StaticString("#6837FC"),
+				MarkdownDescription: "Colour for this tag, as accepted by [color-string](https://github.com/Qix-/color-string).",
 			},
 			"description": schema.StringAttribute{
 				Optional:            true,