By Jill Davis, Founder of Scrapbook.com
In my youth I caught the infectious 'mononucleosis' virus. I knew at the time that 'mono' meant 'one' so I hoped the experience would be a one-time thing. Fortunately, my wish came true.
Years later I caught another bug, similar in name but much more difficult to shake: it was called Frustrated Monochromatic-itis. It came to a point where I wondered if there would ever be a cureā¦
Worried that you might be infected with Frustrated Monochromatic-itis (FM)? Read on!
What is Frustrated Monochromatic-itis...?
Have you ever bought a navy blue sweater thinking it would look great with your favorite pair of navy blue pants, only to find that the colors were "off" just enough to look terrible together? The reason they don't match is because the navy blues were made from different dye blends.
This problem exists in scrapbooking too when you try to find matching cardstock, especially lighter versions of the same color. If you've ever found yourself annoyed, disturbed, or irritated because you can't find a light colored cardstock to go with a darker colored piece, you have Frustrated Monochromaticitis.
While the light-to-dark contrast sometimes works well, the color-clash is frustrating! Most scrapbookers give up on the idea of trying to find pleasing color selections, and opt for working with two different colors.
Sufferers of FM usually have stacks of cardstock in a myriad of colors but few could be combined to form a decent monochromatic layout. Those afflicted usually know there's a problem but may feel like something's wrong with them for not being able to figure out what it is.
What does monochromatic mean?
"Mono" joined with "chroma" means one pure color or hue in multiple shades, tones or tints. Monochromatic color seems to make more sense when you can see a sample. See the Bazzill Basics Monochromatic Red Multi-Pack. [See Figure 1] The samples form a graded scale beginning with intense red color and ending with very, very light red.

Figure 1
How does one color become truly monochromatic?
To best describe how a monochromatic scale is formed, I'll use a monochromatic color triangle. [See Figure 2] Every monochromatic color triangle begins with one foundation color located at the top angle.
This color will vary from triangle to triangle, but every base will have one black angle, one white angle and a grey midpoint.
Shades, tones, and tints are created by adding calculated amounts of value (black, grey, and white) to the foundation color.

Figure 2
In other words...