Is red heavier than yellow even for blind?

Across cultures and languages people find similarities between the products of different senses in mysterious ways. By studying what is called Cross-Modal Correspondences (CMCs), cognitive psychologists discovered that lemons are fast rather than slow, boulders are sour and red is heavier than yellow. Are these CMCs established via sensory perception or can they be learned merely through language? We contribute to this debate by demonstrating that early blind people who lack the perceptual experience of color also think that red is heavier than yellow, but to a lesser extent than sighted do.