Modifiers matching neutral:

• impartial,
• pale,
• natural,
• abundant,
• dark,
• energetic,
• soft,
• small,
• urban,
• earthy,
• warm,
• new,

Simple categories matching pale:

• pastel,
• surface,
• species,
• color,
• green,
• tint,
• neutral,
• shade,
• paper,
• beer,
• purple,
• lemon,
• eyes,