Professional designers make countless decisions when crafting the cover of the next bestseller, and color is one of the most impactful. Although color is inherently visual, the subtle ways it influences our emotions and behavior easily go unseen, perhaps because it works almost instantly, shaping our perceptions before we’re even aware. With adult attention spans averaging only 8.25 seconds, the more a cover can communicate at a glance, the better. Does it convey genre? The mood? Does it make you look twice and pick it up? That’s the power of a well-chosen color palette.
Below are overviews of key aspects of color, including basic color theory, essential terminology, common color meanings, genre trends, common color mistakes, and extra resources. Together, these reveal the hidden psychology of color in effective, genre-appropriate book cover design.
Basics of Color Theory
Color theory is the practical combination of art and science to determine what colors look good together. The Color Wheel, first designed by Isaac Newton in 1672, serves as the basis of color theory as it’s the most common model for organizing colors and their relationships to one another. By selecting specific color combinations based on their relationship to each other on the color wheel, artists and designers can communicate a particular look and feel.
Common color pairings (also known as color schemes) include Monochromatic, Analogous, Triadic, Complementary, and Split Complementary. Each refers to a specific type of relationship the colors share on the color wheel. Over the years, various models of the color wheel have been created for specific use cases (artists mixing paint or pigments, designers mixing light on digital screens, etc.). Regardless of the model, all versions of the color wheel serve as essential tools for understanding how colors work together.
Essential Color Terminology
Having the right language to accurately discuss a topic is key to avoiding miscommunications and misunderstandings. As an author, publisher, designer, or art director, knowing and using color terminology correctly will keep the cover design process running smoothly.
- Hue – A particular color family such as red or green. “Hue” is often used interchangeably with the word, “color.”
- Saturation – A hue’s intensity. Saturation describes a hue’s level of brilliance or dullness. Highly saturated hues appear vibrant. Unsaturated hues appear dull.
- Value – A hue’s lightness or darkness
- Tint – A hue + white
- Shade – A hue + black
- Tone – A hue + gray
- Warm Colors – Red, Orange, Yellow; warm colors appear to come forward
- Cool Colors – Blue, Green, Violet; cool colors appear to recede backward
- Color Temperature – The warmness or coolness of a color
- Color Relativity – The way we perceive a color’s temperature, value, or saturation relative to its surroundings
- Color Schemes – Pleasing color combinations that consist of two or more colors that have a fixed relationship on the color wheel. Common color schemes include Monochromatic, Analogous, Triadic, Complementary, and Split Complementary.
- Primary Colors – Red, Yellow, Blue
- Secondary Colors – Orange, Green, Violet
- Tertiary Colors – Red-orange, Orange-yellow, Yellow-green, Green-blue, Blue-violet, Red-violet
Common Color Meanings
Although color perception is deeply personal, many associations are widely shared. Even so, keep in mind that the exact meaning of a given color can vary according to the color’s intensity, quantity, placement, surrounding colors, and cultural background of the viewer.
- Red – passion, intensity, love, violence, energy, urgency, blood, romance, hate; Red can essentially convey any intense emotion, positive or negative.
(common genres: romance, thrillers, horror) - Orange – enthusiasm, energy, social, danger, stimulates appetite and social interaction; Orange combines red’s energy with yellow’s positivity for a more balanced effect.
(common genres: adventure, upbeat fiction, nonfiction) - Yellow – optimism, creativity, youth, joy, fortunate, fear, sickness; Yellow is typically associated with happiness and mental stimulation, but depending on the shade can communicate the opposite.
(common genres: lighthearted fiction, comedy, self-help, business) - Green – growth, nature, peace, balance, greed, money, luxury, luck; Green usually signifies well-being and abundance, whether it be health, wealth, or luck.
(common genres: wellness, self-help, fantasy, environmental themes) - Blue – trust, calm, authority, peace; Blue instills a sense of calm, trust, and depth.
(common genres: nonfiction, business, poetry, literary fiction) - Purple/Violet – mystery, luxury, imagination, magic, spiritual, royalty; Purple implies something out of the ordinary, special, magical, or spiritual.
(common genres: fantasy, magical realism) - Pink – sweet, gentle, feminine, delicate, emotional, innocent, romantic, kind; Depending on the shade, pink can feel delicate and soft or bold and modern.
(common genres: romance, YA, contemporary fiction) - Black – evil, ominous, empty, sophistication; Black can appear elegant or ominous depending on context.
(common genres: thrillers, horror, classics) - White – hope, purity, innocence, simplicity, minimalism; White often implies simplicity or clarity of thought.
(common genres: nonfiction, literary fiction.)
Color Trends in Book Genres
Meeting genre conventions helps readers recognize whether a book is a romance, psychological thriller, fantasy, or something else entirely. However, if you’ve ever browsed the aisles at your local bookstore, you’ve likely noticed how oversaturated genre trends can become. Covers all start to look alike and as a result become forgettable. A book may clearly read as a thriller, but also easily blend in with countless others.
A professional book cover designer knows that striking the right balance between genre expectations and originality is key. A skilled designer knows how to break conventions intentionally, introducing something unexpected and original without misrepresenting the story or confusing readers about the genre. Color trends are no exception. Knowing when to uphold traditional genre-color cues and when to introduce an unexpected palette is part of what sets a great cover (and cover designer) apart.
Listed below are current genre color trends with examples of each from INABC’s book cover library.
Horror/Thriller: Red & Black
Horror/Thriller: Lime Green
Romance: Pinks, Pastels, Soft Tones
Fantasy: Purple, Jewel Tones, Metallic Accents
Nonfiction/Business: Blue & Yellow
Common Mistakes with Color
- Choosing colors you like regardless of genre, mood, or intended audience.
- Ignoring color values. If colors all have the same value, contrast (and potentially legibility) will be poor. Don’t get so focused on the hue that you forget about the value.
- Using too many colors. Pick a palette and stick to it. Using too many colors at once can look unintentionally chaotic.
Color Resources
Online Palette Generators
- https://color.adobe.com/
- https://access.mymind.com/colors
- https://coolors.co/
- https://designwiz.com/color-palettes
- https://paletton.com/
Online Color Identifiers
- https://www.colorhexa.com/
- https://toolerbox.com/tools/color-converter
- https://rgbatohex.com/tools/color-name
- https://www.pantone.com/pantone-connect
Helpful Books
- Color Theory: An essential guide to color—from basic principles to practical applications by Patti Mollica
- Interaction of Colors by Josef Albers
- Roy G. Biv: An Exceedingly Surprising Book About Color by Jude Stewart
- Secret Language of Color: Science, Nature, History, Culture, Beauty of Red, Orange, Yellow, Green, Blue, & Violet by Joann Eckstut
- The Secret Lives of Color by Kassia St. Clair
- The Pink Book by Kaye Blegvad
