Payne's Gray (Liquitex Bio-Based Heavy Body)Bio Based Heavy Acrylic Payne's Gray In Stock Now! Available sizes: 75ml (2. 5oz) 500ml (16. 9oz) A dark blue grey made from a mixture of ultramarine, mars black and sometimes crimson. It was named after the 18th century water colorist William Payne who created the mixture and often recommended it to his students as an alternative to plain black. SPECIFICATIONS Pigment: PB29,PBk11,PV15 Series: 2 Opacity: Opaque Lightfastness: Excellent Color code: 310