| No 1 (Royal Red and Blue) | |
| Artist: | Mark Rothko |
| Year: | 1954 |
| Medium: | Oil on canvas |
| Height Metric: | 288.9 |
| Width Metric: | 171.5 |
| Height Imperial: | 113¾ |
| Width Imperial: | 67½ |
| Museum: | Private collection |
No 1 (Royal Red and Blue) is a 1954 Color Field painting by the Abstract expressionist artist Mark Rothko. In November 2012, the painting sold for US$75.1 million (£47.2m) at a Sotheby's auction.[1] [2]