International Klein Blue
About International Klein Blue
International Klein Blue, represented by the hexadecimal color code #0330B0, is a deep, saturated blue hue renowned for its unique intensity. Developed by the French artist Yves Klein in collaboration with a Parisian paint supplier, this color was specifically formulated to retain its vibrancy and brilliance when applied to various surfaces. Klein sought to capture the essence of pure blue, believing it to represent the boundless expanse of the sky and the sea. The color achieves its remarkable saturation through the suspension of pure blue pigment in a synthetic resin, which minimizes light scattering. This allows for maximum color intensity and visual impact. The color is trademarked in France under the name International Klein Blue (IKB).
The hex color #0330B0, also known as International Klein Blue, presents significant accessibility challenges due to its extremely dark hue. When used as a foreground color for text or interactive elements, it requires a very light background color to ensure sufficient contrast for readability. According to WCAG (Web Content Accessibility Guidelines), a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using #0330B0 on a dark or moderately light background will likely fail these guidelines, making content difficult or impossible to read for users with visual impairments. Therefore, careful consideration and testing with accessibility tools are essential when implementing this color in digital interfaces. Alternative color combinations should be explored to ensure inclusivity and usability for all users, and sufficient testing is recomended with screen readers.
Shades
Digital Color Formats
Alternative colors
- #4682b4
A lighter blue that provides better contrast against white backgrounds, improving readability and accessibility.
- #2962ff
A vibrant, yet accessible, blue that can be used for call-to-action buttons and other interactive elements.
- #add8e6
A softer blue, useful as a background color paired with darker text, offering a calming and accessible design.
Applications
Website Hero Sections
International Klein Blue can be used to create eye-catching hero sections on websites, particularly for technology or creative agencies. Its boldness attracts attention and communicates innovation. However, care must be taken to ensure that text and other elements on the hero section have sufficient contrast. The color is often combined with white or other light neutral colors to make it more readable. Complementary imagery can also enhance the overall aesthetic, while maintaining focus on the site's main message and call to action. Use the blue for large headings and graphic elements, while reserving lighter shades for body text and supporting content.
Interior Design Accent Walls
In interior design, International Klein Blue adds a sophisticated and artistic touch to spaces. Use it as an accent wall color in living rooms, studios, or offices to create a focal point. Balance the intensity of the color with neutral furniture and decor elements, such as white sofas, wooden accents, and metallic accessories. Incorporating plants can also soften the overall look and bring a natural element to the space. Ensure the room receives plenty of natural light, as darker shades can make smaller spaces feel more enclosed.
Fashion Design
This distinctive blue brings a bold statement to fashion design. Use it for dresses, jackets, or accessories to make a memorable impression. Pair the blue with neutral colors like black, white, or gray to create balanced outfits. Use the bold blue in small doses to accent the outfit, like in jewelry, bags or shoes. This color also works well in sportswear as a vibrant color in leggings, or sport jackets and provides a fashionable look.