Prussian Blue
General Information about Prussian Blue
Prussian Blue, represented by the hexadecimal color code #023555, is a deep, rich shade of blue with historical significance and versatile applications across various fields. Chemically, Prussian Blue is a complex compound, a ferric ferrocyanide with the formula Fe7(CN)18·xH2O. It was accidentally discovered in the early 18th century and quickly gained popularity as a pigment due to its stability, affordability, and vibrant color. In art, Prussian Blue has been used extensively by painters such as Hokusai in his famous print "The Great Wave off Kanagawa." Today, Prussian Blue continues to be used in paints, dyes, and coatings. Its unique properties also make it useful in medicine as an antidote for certain types of heavy metal poisoning. The color evokes feelings of sophistication, trust, and stability.
The hex color #023555, also known as Prussian Blue, presents specific accessibility considerations for web developers. Its dark hue offers good contrast when paired with light foreground colors like white (#FFFFFF) or pale yellow (#FFFFE0). However, using it with other dark colors can lead to insufficient contrast, making text or interactive elements difficult to read for users, especially those with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Developers should use contrast checking tools to ensure their color combinations meet these standards when using #023555. Thoughtful design that includes sufficient contrast enhances usability and inclusivity, ensuring that content is accessible to a broader audience, including individuals with low vision or color blindness. Proper use of ARIA attributes can further improve accessibility.
Shades
Digital Color Formats
Alternative colors
- #0a426b
A slightly lighter shade that still captures the essence of Prussian Blue but offers a bit more versatility in design applications, providing slightly better contrast with darker text.
- #002a4a
A deeper, richer blue that provides a strong, authoritative feel, suitable for backgrounds or elements needing significant visual impact. This also offers great contrast when paired with light colors.
- #457b9d
This color offers a softer, more muted take on Prussian Blue, making it a good choice for creating a calming and sophisticated atmosphere in web design, offering great readability with white text.
Applications
Corporate Website Design
Prussian Blue (#023555) can be used as the primary color for a website belonging to a financial institution or a corporate entity that wants to project stability and trustworthiness. The color evokes feelings of security and professionalism, making it ideal for backgrounds, headers, and call-to-action buttons. When combined with a clean, minimalist design, Prussian Blue can help create a sense of confidence and reliability in the brand.
Interior Design Accent
In interior design, Prussian Blue can be used to create a sophisticated and calming atmosphere in living rooms or bedrooms. It works particularly well as an accent wall color or for upholstery. When paired with neutral tones like cream or gray, Prussian Blue adds depth and richness to the space without being overwhelming. The color can also be used in combination with metallic accents like gold or silver for a touch of luxury.
Fashion and Apparel
In fashion, Prussian Blue is often used in formal wear or business attire. A Prussian Blue suit or dress can convey a sense of authority and professionalism. It is also a popular color for accessories like scarves, ties, and handbags. Prussian Blue pairs well with neutral colors like black, white, and gray, as well as complementary colors like orange and coral. The color is versatile and can be worn year-round.