International Klein Blue
About International Klein Blue
International Klein Blue, often referred to as IKB, is a deep blue hue first mixed by the French artist Yves Klein. He registered this color as a trademark in 1957. IKB's visual impact comes from its heavy reliance on ultramarine pigment, which is known for its intensity and purity. This particular shade of blue absorbs a high quantity of light, which creates a sense of depth and almost ethereal quality. It became synonymous with Klein's artistic explorations, especially his monochrome paintings. Beyond art, IKB is sometimes seen in fashion and design, seeking to evoke a sense of the avant-garde. The color's unique properties make it stand out in a variety of applications, though its use often requires careful consideration due to its intensity.
The color #0618AE, or International Klein Blue, presents several accessibility challenges. Its very low luminance of approximately 0.01 makes it difficult to read when used as text on a white background, failing WCAG contrast ratio guidelines for normal text (4.5:1) and large text (3:1). To improve accessibility, consider using a lighter color for text or interface elements on an International Klein Blue background. White (#FFFFFF) text on this background also fails accessibility guidelines. Using a significantly lighter hue, such as a pastel yellow or a very light gray, could provide sufficient contrast. Alternatively, #0618AE could be paired with darker colors, like a very dark gray or black, for backgrounds to increase contrast when #0618AE is used for text or interface elements. Careful consideration of color pairings and contrast ratios is essential to ensure readability and usability for all users, including those with visual impairments.
Shades
Digital Color Formats
Alternative colors
A slightly lighter blue that offers better contrast on white backgrounds while maintaining a similar vibrant feel.
A darker shade that can be used for backgrounds when International Klein Blue is used for text, providing better readability.
This color can be used to create a calm and relaxing background for the website, giving a sense of trust and security for the user.
Applications
Call-to-Action Buttons
International Klein Blue's unique vibrancy makes it suitable for call-to-action buttons. It is important that the color has enough contrast to the background of the website.
Tech Startup Branding
This color can be used as a unique background for a tech-related startup or website, particularly for innovative companies. Its distinctive hue communicates creativity and out-of-the-box thinking. However, ensure that text on this background has sufficient contrast for readability.
Fashion Design
International Klein Blue can be incorporated into fashion design, especially in statement pieces or accent elements. Its striking appearance ensures that the garment or accessory will stand out. Because the color is so strong, it is important to use it sparingly and with intention.