diff --git a/package/Shaders/RunGrass.hlsl b/package/Shaders/RunGrass.hlsl
index a57bec6f1f..f9b2f6c16e 100644
--- a/package/Shaders/RunGrass.hlsl
+++ b/package/Shaders/RunGrass.hlsl
@@ -868,6 +868,8 @@ PS_OUTPUT main(PS_INPUT input)
 	psout.PS.w = diffuseAlpha;
 #		else
 
+	baseColor.xyz /= 2.8; // Match brightness of ISSkyrimClearDAY;
+
 	uint eyeIndex = Stereo::GetEyeIndexPS(input.HPosition, VPOSOffset);
 
 	float3 viewPosition = mul(FrameBuffer::CameraView[eyeIndex], float4(input.WorldPosition.xyz, 1)).xyz;
@@ -896,7 +898,7 @@ PS_OUTPUT main(PS_INPUT input)
 	}
 
 	float llDirLightMult = (SharedData::linearLightingSettings.enableLinearLighting && !SharedData::linearLightingSettings.isDirLightLinear) ? SharedData::linearLightingSettings.dirLightMult : 1.0f;
-	float3 diffuseColor = Color::DirectionalLight(SharedData::DirLightColor.xyz / max(llDirLightMult, 1e-5), SharedData::linearLightingSettings.isDirLightLinear) * dirShadow * dirDetailShadow * 0.5 * llDirLightMult;
+	float3 diffuseColor = Color::DirectionalLight(SharedData::DirLightColor.xyz / max(llDirLightMult, 1e-5), SharedData::linearLightingSettings.isDirLightLinear) * dirShadow * dirDetailShadow * llDirLightMult;
 
 #			if defined(LIGHT_LIMIT_FIX)
 	uint clusterIndex = 0;
@@ -940,7 +942,7 @@ PS_OUTPUT main(PS_INPUT input)
 
 				lightColor *= lightShadow;
 
-				diffuseColor += lightColor * 0.5;
+				diffuseColor += lightColor;
 			}
 		}
 	}
diff --git a/src/Features/GrassLighting.h b/src/Features/GrassLighting.h
index b990180f7c..cd5c2db197 100644
--- a/src/Features/GrassLighting.h
+++ b/src/Features/GrassLighting.h
@@ -34,7 +34,7 @@ struct GrassLighting : Feature
 		float SpecularStrength = 0.5f;
 		float SubsurfaceScatteringAmount = 0.5f;
 		uint OverrideComplexGrassSettings = false;
-		float BasicGrassBrightness = 0.33f;
+		float BasicGrassBrightness = 1.0f / 2.8f;  // Match brightness of ISSkyrimClearDAY
 		uint EnableWrappedLighting = false;
 		float ComplexGrassThreshold = 0.03f;
 		uint pad1;