diff --git a/src/page-components/scheme/q-2-scheme/Preview.tsx b/src/page-components/scheme/q-2-scheme/Preview.tsx
index 500f4e3..6580771 100644
--- a/src/page-components/scheme/q-2-scheme/Preview.tsx
+++ b/src/page-components/scheme/q-2-scheme/Preview.tsx
@@ -122,9 +122,9 @@ const PreviewBlock: FC<PreviewBlockProps> = ({ baseline, title }) => {
     <div className={styles.preview_block} style={{ backgroundColor: `#${baseline.surface.root}` }}>
       <h2 style={{ color: `#${baseline.surface.onRoot}` }}>{title}</h2>
       <PreviewSet name="Primary" colorUnit={baseline.primary} />
-      <PreviewSet name="Secondary" colorUnit={baseline.secondary} />
-      <PreviewSet name="Tertiary" colorUnit={baseline.tertiary} />
-      <PreviewSet name="Accent" colorUnit={baseline.accent} />
+      {baseline.secondary && <PreviewSet name="Secondary" colorUnit={baseline.secondary} />}
+      {baseline.tertiary && <PreviewSet name="Tertiary" colorUnit={baseline.tertiary} />}
+      {baseline.accent && <PreviewSet name="Accent" colorUnit={baseline.accent} />}
       <PreviewSet name="Danger" colorUnit={baseline.danger} />
       <PreviewSet name="Success" colorUnit={baseline.success} />
       <PreviewSet name="Warn" colorUnit={baseline.warn} />