International Klein Blue
General Information
International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color in 1957. The visual impact of IKB comes from its heavy reliance on ultramarine, as well as Klein's matte, synthetic resin binder, which suspends the color pigment and allows the pigment to retain its pure qualities. Because ultramarine is chemically identical to the gemstone lapis lazuli, IKB is a very vibrant and intense color. In the Munsell color system, IKB is approximately 5.0PB 2.9/11.3. It is not part of the web safe colors. The color is often associated with art and innovation.
The hex color #0A31AB, also known as International Klein Blue, presents several accessibility considerations. Its dark hue means that it generally requires light-colored text for sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #0A31AB for backgrounds, ensure that the text overlaid meets these contrast requirements. Tools are available online to check the contrast ratio between two colors. Furthermore, avoid using color as the sole means of conveying important information; supplement it with text or icons to accommodate users with color vision deficiencies. Consider providing alternative color schemes to cater to different user preferences and needs, enhancing overall accessibility.
Shades
Digital Color Formats
Alternative colors
- #2E5CB8
A slightly lighter blue that maintains vibrancy while improving readability against darker backgrounds.
- #46639A
A more muted blue that offers a softer aesthetic and better contrast with a wider range of text colors.
- #00FFFF
A vibrant cyan that complements the original color's vibrancy, offering a brighter alternative for highlights or accents.
Applications
Web Design
International Klein Blue is often used in modern web design to create striking visual elements. Its intensity makes it ideal for call-to-action buttons, headers, and other design features that need to grab the user's attention. When used sparingly and balanced with neutral colors, #0A31AB can create a sophisticated and engaging user experience. It is especially effective in designs that aim to convey innovation, creativity, or a sense of depth.
Fashion
In the fashion industry, International Klein Blue can be used to create bold and eye-catching statement pieces. Its striking hue makes it suitable for dresses, suits, and accessories that are designed to stand out. This color works particularly well with materials like velvet or silk, which enhance its richness and depth. It can also be used as an accent color in smaller doses, such as in scarves or handbags, to add a pop of color to a more neutral outfit. Pairing it with complementary colors like yellow or orange can create a vibrant and energetic look, while using it with black or white can create a more sophisticated and modern aesthetic.
Interior Design
International Klein Blue can inject a sense of vibrancy and sophistication into interior spaces. It can be used as an accent wall color to create a focal point in a room, or incorporated into furniture and accessories like cushions, rugs, and artwork. When using #0A31AB in interior design, it's important to balance it with neutral colors like white, gray, or beige to prevent it from overwhelming the space. The color can also be used to create a sense of depth and dimension, making smaller rooms feel larger and more open. Its boldness makes it ideal for spaces that want to promote creativity and inspiration.