International Klein Blue
About International Klein Blue
International Klein Blue (IKB), represented by the hex code #031EB1, is a deep ultramarine blue hue that was first mixed by the French artist Yves Klein. Klein registered this color as a trademarked paint color in 1957. The visual impact of IKB comes from its heavy reliance on ultramarine pigment, as well as Klein's technique of suspending the pigment in a synthetic resin that allowed the color to retain its brilliance and intensity. Because the color is so unique, it is associated with creativity and abstraction. As a color, it has high intensity and purity, as well as strong visual impact. Because it is an ultramarine pigment, it looks different under varied lighting conditions. The deep, intense nature of IKB makes it suitable for use in art, design, and branding, where it can create a sense of sophistication, innovation, and depth.
The hex color #031EB1, also known as International Klein Blue, presents significant accessibility challenges, particularly concerning contrast. Its very dark nature means that text or user interface elements rendered in this color require extremely light foreground colors (such as white or very pale yellow) to ensure sufficient contrast for readability. According to WCAG (Web Content Accessibility Guidelines) standards, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Due to its darkness, #031EB1 demands careful consideration of color pairings to meet these guidelines. Using contrast checking tools is essential to validate that the chosen foreground color provides adequate contrast. Additionally, avoid using #031EB1 for essential graphical elements or controls without a high-contrast alternative, as users with low vision may struggle to perceive them. Providing alternative color schemes or themes can greatly improve accessibility for a wider audience.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design and Branding
International Klein Blue is often employed to convey depth, trust, and stability. In web design, it can serve as a striking accent color, particularly for buttons, links, or section headers. However, due to its intensity, it's best used sparingly to avoid overwhelming the user. In branding, it evokes a sense of sophistication and creativity, making it suitable for companies in the arts, technology, or financial sectors. Consider pairing it with neutral colors like white, gray, or beige to balance its boldness. In user interfaces, ensure sufficient contrast with text and interactive elements to maintain accessibility. This color works well for companies that want to convey a futuristic or innovative impression.
Fashion and Interior Design
This particular shade of blue, made famous by Yves Klein, has found its way into haute couture and ready-to-wear collections. It's often used in statement pieces like dresses, coats, or accessories to add a vibrant pop of color. In interior design, it can be used to create a focal point in a room, whether it's a piece of furniture, a wall accent, or artwork. It can also be used as a bold contrast color in small details. However, caution should be taken to avoid overuse, as it can be overpowering if not balanced with lighter, more neutral tones. Using it in home design expresses boldness and a desire to express yourself.
Data Visualization
International Klein Blue is an excellent choice for data visualization because it stands out, has high contrast, and is easy to distinguish from other colours. It is an ideal choice to highlight particular points or patterns in a chart because its strong visibility makes it simple for viewers to focus their attention where it's most needed. Additionally, the blue's distinct visual identity makes it easy to recall and apply in many projects. Be sure to use it to effectively catch the viewer's attention.