diff --git a/materialx/bl_nodes/shader.py b/materialx/bl_nodes/shader.py
index 6ab39ce68..da2e62603 100644
--- a/materialx/bl_nodes/shader.py
+++ b/materialx/bl_nodes/shader.py
@@ -9,10 +9,6 @@ from ..utils import get_mx_node_input_types
 from . import log
 
 
-SSS_MIN_RADIUS = 0.0001
-DEFAULT_WHITE_COLOR = (1.0, 1.0, 1.0)
-
-
 def enabled(val):
     if val is None:
         return False
@@ -108,7 +104,7 @@ class ShaderNodeBsdfPrincipled(NodeParser):
         if enabled(specular):
             result.set_inputs({
                 'specular': specular,
-                'specular_color': DEFAULT_WHITE_COLOR,
+                'specular_color': base_color,
                 'specular_roughness': roughness,
                 'specular_IOR': ior,
                 'specular_anisotropy': anisotropic,
@@ -118,7 +114,7 @@ class ShaderNodeBsdfPrincipled(NodeParser):
         if enabled(transmission):
             result.set_inputs({
                 'transmission': transmission,
-                'transmission_color': DEFAULT_WHITE_COLOR,
+                'transmission_color': base_color,
                 'transmission_extra_roughness': transmission_roughness,
             })
 
@@ -133,14 +129,14 @@ class ShaderNodeBsdfPrincipled(NodeParser):
         if enabled(sheen):
             result.set_inputs({
                 'sheen': sheen,
-                'sheen_color': DEFAULT_WHITE_COLOR,
+                'sheen_color': base_color,
                 'sheen_roughness': roughness,
             })
 
         if enabled(clearcoat):
             result.set_inputs({
                 'coat': clearcoat,
-                'coat_color': DEFAULT_WHITE_COLOR,
+                'coat_color': base_color,
                 'coat_roughness': clearcoat_roughness,
                 'coat_IOR': ior,
                 'coat_anisotropy': anisotropic,