International Klein Blue
About International Klein Blue
International Klein Blue, or IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein registered this color as a trademark in 1957. IKB's visual impact comes from its heavy reliance on ultramarine pigment, as well as Klein's matte, synthetic resin binder, which allows the pigment to maintain its brilliance. The color is particularly striking due to its perceived intensity, depth, and ability to evoke a sense of infinity. Klein used IKB in a wide variety of artworks, primarily sculptures and paintings, aiming to achieve a pure expression of color, stripped from any representational meaning. Therefore the color is very recognizable and represents the artist himself.
The hex color #0718ad, also known as International Klein Blue (IKB), presents significant accessibility challenges due to its low luminance. When used as a foreground color, it requires a very light background color to ensure sufficient contrast for readability, especially for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. This intense blue hue may not meet these standards when paired with many common background colors. Therefore, it is essential to conduct thorough contrast testing using accessibility tools to verify compliance. If adequate contrast cannot be achieved, consider using a lighter tint or a completely different color with better contrast to ensure inclusive design.
Shades
Digital Color Formats
Alternative colors
A slightly lighter blue that offers better contrast while retaining a similar vibrant feel.
A more muted blue that provides better readability and accessibility on a wider range of background colors.
A vibrant color alternative with improved accessibility, suitable for backgrounds and interactive elements.
Applications
Web Design Accents
International Klein Blue is often used in modern art and design to evoke feelings of depth and infinity. In web design, it can serve as an accent color to draw attention to specific elements or highlight calls to action. It is also valuable to use it for branding, when it is desirable to create a very recognizable brand.
Fashion Statements
IKB is a popular color choice for creating bold and impactful fashion statements. It can be used in clothing, accessories, and even makeup to add a touch of sophistication and artistic flair. Combining it with neutral tones such as white, gray, or black can help to balance the intensity of the color and create a more versatile look. The color can be implemented in both male and female fashion.
Interior Design Accents
In interior design, IKB can be used to create a striking focal point in a room. Whether it's a painted wall, a statement piece of furniture, or decorative accents, this color can add a sense of drama and artistic expression to any space. To balance the intensity, it is advisable to use more of the neutral colors in the room, such as white or light grey.