International Klein Blue

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue that was developed and patented by the French artist Yves Klein. This specific shade of blue is renowned for its intense and captivating quality. The color's unique visual impact is achieved through a combination of ultramarine pigment and a synthetic resin binder, which preserves the pigment's brilliance and depth. Klein sought to capture the essence of the sky and the sea, aiming to evoke a sense of boundless space and spirituality through this color. He wanted to represent the immaterial and infinite. The color has since been used in a range of artistic and design applications, from paintings and sculptures to fashion and interior design, and remains a distinctive and recognizable shade of blue.

The hex color #0B39A9, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its dark hue results in a low contrast ratio against lighter backgrounds, making text and other elements difficult to discern. To ensure inclusivity, it is imperative to use this color judiciously. When employing #0B39A9 as a background, opt for white or very light-colored text to achieve sufficient contrast. Conversely, if it's used for text, pair it with a light background. Adhering to WCAG guidelines for contrast ratios (4.5:1 for standard text and 3:1 for large text) is crucial. Additionally, providing alternative visual cues, such as underlines or icons, can enhance usability for all users, especially those with color vision deficiencies. Careful consideration of color combinations and contrast is essential when incorporating #0B39A9 into designs to create an accessible and user-friendly experience.

Shades

Digital Color Formats

Alternative colors

Applications

• Website Design

  International Klein Blue is a striking color choice for website headers and banners, instantly drawing attention. However, its darkness necessitates careful selection of text colors to ensure readability and accessibility. Employing white or a very light yellow for text is advisable to achieve sufficient contrast. Furthermore, the color can be incorporated into website buttons and call-to-action elements, providing a visually appealing and engaging user experience. The brand needs to consider accessibility standards for colors.

• Interior Design

  This intense blue hue can serve as an accent color in interior design, adding a touch of sophistication and drama to a room. When used on walls, it creates a bold statement, particularly in smaller spaces. Alternatively, it can be incorporated into decorative elements such as throw pillows, artwork, or vases to provide pops of color. Balance is key when using International Klein Blue, as it can easily overpower a space if not used judiciously. Consider pairing it with neutral tones like white, gray, or beige to create a harmonious and visually appealing environment.

• Fashion

  International Klein Blue can be used in fashion, for example for clothes, shoes or accessories. It's important to know how to combine it to create interesting and fashionable looks. This blue is suitable for shirts, sweaters, dresses, trousers or skirts, and is often seen on shoes or handbags. Use neutral colors like white or grey to create calm visual balance.

Complementary color

Buttons