Color Palette for Drawing & Sketching Canvas. Primary: #7C3AED (on-primary: #FFFFFF). Secondary: #8B5CF6 (on-secondary: #FFFFFF). Accent: #0891B2 (on-accent: #FFFFFF). Background: #1C1917. Foreground: #FFFFFF. Card: #262321 (card-foreground: #FFFFFF). Muted: #231B28 (muted-foreground: #94A3B8). Border: rgba(255,255,255,0.08). Destructive: #DC2626 (on-destructive: #FFFFFF). Ring: #7C3AED. Notes: Canvas purple + tool teal on dark.