Show off your dark side in style with this unisex 'Black Is My Happy Colour' t-shirt, perfect for lovers of all things monochrome and moody. Featuring bold gothic-style text on classic black fabric, this tee is ideal for everyday wear, alternative events or a quirky gift for someone who always skips the pastels. 100% Cotton. Unisex Fit. Models in image are wearing size M. Designed by Something Different and part of the Strange and Unusual collection of home decor and accessories.