Solid-color embedded security feature

A print medium having an apparent solid-color background in a target color containing a latent image comprising

• an underlying solid-color background printed with a first color composition that differs from the target color,
• a latent image and a visually integrated setting printed over an area in common with the underlying solid-color background as line-screen patterns having a second color composition that differs from both the target color and the first color composition,
• the latent image being practically indistinguishable from the visually integrated setting without a viewing aid,
• the line-screen patterns of the latent image and the visually integrated setting having a limited print density so that at least some of the underlying solid-color background is visible through the line-screen patterns, and
• a combination of the first color composition of the underlying solid-color background that is visible through the line-screen patterns and the second color composition of the line-screen patterns producing the apparent solid-color background in the target color.

A targeted solid-color printing system with covert imaging comprising

• a targeted color,
• a substrate printed with line-screen patterns having a first color over a solid-color background printed with a second color,
• a first of the line-screen patterns embedding a latent image within a visually integrated setting formed by a second of the line-screen patterns, and
• the line-screen patterns being arranged with a limited print density to form together with the solid-color background an uninterrupted tint in the targeted color.