International Klein Blue
About International Klein Blue
International Klein Blue, abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein sought to create a blue that captured the essence of the sky and the sea, aiming for a color that conveyed a sense of infinity and transcendence. The color was officially registered as a trademark in 1957. IKB is characterized by its high saturation and matte finish, achieved by suspending pure ultramarine pigment in a synthetic resin. This combination gives the color its unique, velvety appearance. IKB has been used extensively in Klein's art installations and sculptures. The color is often associated with modernity, abstraction, and a sense of the sublime. It remains a prominent symbol of Klein's artistic vision and continues to inspire artists and designers across various fields.
The hex color #0615ae, also known as International Klein Blue (IKB), presents significant accessibility challenges, primarily due to its very low luminance. When used as a foreground color against a white or light background, it fails to meet WCAG (Web Content Accessibility Guidelines) AA and AAA contrast ratio requirements. This can make text and other visual elements difficult to read for users with visual impairments, including those with low vision or color blindness. To improve accessibility, it's crucial to pair IKB with very light foreground colors like white or very pale yellow to achieve an adequate contrast ratio. The use of IKB should be limited to decorative elements or in combination with supporting accessible design. It is recommended to use tools like contrast checkers to verify that the color combinations meet accessibility standards to ensure that content is usable by everyone, including those with disabilities.
Shades
Digital Color Formats
Alternative colors
Midnight blue offers a similar dark blue aesthetic but with slightly improved contrast against lighter backgrounds.
Navy blue is a classic and versatile alternative that provides better readability compared to International Klein Blue.
A lighter shade of blue that will allow better legibility for text and UI elements.
Applications
Web Design Accent
International Klein Blue can be used as an accent color to bring character to a minimalist website design. A good example is to use it for button highlights, progress bars or as a background for short call-to-action titles to bring emphasis without overwhelming the overall theme.
Fashion Statement
In fashion, this shade of blue can be used for statement pieces such as dresses or accessories like scarves and handbags. It can be incorporated into outfits as a bold splash of color against neutral tones or paired with complementary colors for a vibrant and eye-catching look. This color works best on silk and wool materials.
Interior Design Accent
In interior design, IKB can be used to create a focal point in a room. For example, a single accent wall painted in this color can add depth and visual interest to a space with neutral walls. It can also be incorporated through furniture pieces or decorative accessories, such as cushions, vases, or artwork. Consider pairing IKB with white, gray, or natural wood tones to create a balanced and sophisticated atmosphere. The intense hue can bring a sense of creativity and sophistication to home and office environments.