Color Palette for Spatial Computing OS / App. Primary: #FFFFFF (on-primary: #0F172A). Secondary: #E5E5E5 (on-secondary: #0F172A). Accent: #FFFFFF (on-accent: #0F172A). Background: #888888. Foreground: #000000. Card: #999999 (card-foreground: #000000). Muted: #777777 (muted-foreground: #D4D4D4). Border: #CCCCCC. Destructive: #FF3B30 (on-destructive: #FFFFFF). Ring: #007AFF. Notes: Glass white + system blue [Accent adjusted from #007AFF for WCAG 3:1].