International Klein Blue
About International Klein Blue
International Klein Blue, or IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color to maintain its unique and distinctive appearance. IKB's intensity and depth are a result of its high concentration of ultramarine pigment. The color is renowned for its captivating effect on the viewer, evoking feelings of vastness, infinity, and transcendence. IKB is often used in art and design to create a sense of depth and emotion. Its intense saturation means the RGB representation is R:1, G:41, B:190. It has made its mark on many forms of visual art, solidifying itself as a truly unique and iconic color.
The hex color #0129be, also known as International Klein Blue (IKB), presents significant accessibility challenges, especially in web design. Its very low luminance value means that text rendered in this color against a white background fails WCAG standards for contrast ratios. Specifically, the contrast ratio is significantly below the required 4.5:1 for normal text and 3:1 for large text. Consequently, users with visual impairments, including those with low vision or color blindness, may struggle to read content presented in this color. To improve accessibility, consider using IKB sparingly, primarily for decorative elements rather than essential text or interactive components. When IKB is used for text or interactive elements, ensure that it is paired with a very light color to guarantee sufficient contrast and meet accessibility guidelines, such as using a light shade of yellow or white.
Shades
Digital Color Formats
Alternative colors
- #3359d9
A slightly lighter shade of blue that provides better contrast while maintaining a similar vibrant feel.
- #001a8f
A darker shade of blue that can be used for backgrounds or elements where contrast is less critical.
- #4d6cb3
A desaturated blue that offers a more subtle and accessible option for text and interactive elements.
Applications
Web Design Accents
In web design, IKB can be used as an accent color to draw attention to specific elements or to create a modern and sophisticated look. It's particularly effective for buttons, links, or headings when paired with a contrasting background. However, due to its strong visual impact, it should be used sparingly to avoid overwhelming the user.
Fashion Statements
In fashion, IKB can be used to create bold and eye-catching statements. A dress or accessory in this color can instantly elevate an outfit and project confidence and style. Because of its vibrant hue, it pairs well with neutral colors such as black, white, or gray, allowing the blue to take center stage.
Interior Design Accent
In interior design, IKB can be used to add a pop of color to a room. A statement wall, a piece of furniture, or decorative accessories in this hue can transform a space and create a focal point. It works particularly well in minimalist or modern interiors, adding a touch of personality and drama.