International Klein Blue
About International Klein Blue
International Klein Blue (IKB), with the hexadecimal color code #0035B4, is a deep ultramarine blue hue renowned for its intensity and unique matte finish. It was developed by the French artist Yves Klein in collaboration with a Parisian paint dealer, aiming to capture and preserve the color's brilliance and spiritual essence. Klein patented the color in 1957. IKB achieves its extraordinary saturation due to a special synthetic resin binder that allows the pigment to retain its purity and luminosity. This color has been widely used in art, design, and fashion to evoke feelings of infinity, spirituality, and transcendence. Its distinct appearance makes it instantly recognizable and deeply influential in the world of visual culture. The color represents a departure from traditional artistic expression.
The hex color #0035b4, also known as International Klein Blue (IKB), presents some accessibility challenges, especially in web design. Its relatively low luminance value means that text rendered in white or very light colors on this background generally meets WCAG (Web Content Accessibility Guidelines) AA standards for color contrast. To ensure optimal readability, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #0035b4 for interactive elements such as buttons or links, sufficient contrast should be maintained in their various states (hover, focus, active) to provide a clear visual cue for users. It's advisable to use color contrast checking tools to validate compliance with accessibility standards. Avoid pairing it with similar dark colors, which would further reduce contrast and impair readability for users with visual impairments.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design Accent
In web design, International Klein Blue can serve as a striking accent color to draw attention to key elements, such as call-to-action buttons or headings. Its intensity makes it suitable for minimalist designs where a single pop of color can create a significant visual impact. IKB can also be effectively used in data visualizations to represent important data sets. Combining it with neutral grays and whites will enhance its vibrancy and ensure it doesn't overwhelm the overall design. However, it should be used sparingly in large areas due to its intensity, and careful consideration should be given to the color combinations to maintain readability and accessibility.
Interior Design Accent
In interior design, IKB can transform a room with its bold and immersive character. It can be used as an accent wall to create a focal point or incorporated into furniture pieces to add a touch of sophistication and drama. Consider using it in rooms with ample natural light to balance its intensity. Pair it with complementary colors like white, gold, or silver for a luxurious feel, or with natural wood tones and earthy textures for a more grounded and organic aesthetic. Smaller doses of IKB can be introduced through decorative accessories such as cushions, artwork, or vases to add subtle pops of color without overwhelming the space.
Fashion Accent
In fashion, IKB makes a bold statement. It can be used in clothing, accessories, and even makeup. A solid IKB dress, scarf or shoes can add visual interest to any outfit. The color works well with neutral tones such as gray, black, and white.