Related Clues:

• Sombre
• In need of some color
• Lacking liveliness
• Dingy
• Hardly vibrant
• Visually dull
• Uninspired
• Unlikely to catch the eye
• Not colorful
• Olive __: uniform color
• Boring, colorwise
• *See 61-Across
• Not at all bright
• Hardly fascinating
• Like Soviet architecture