International Klein Blue

#0528AE

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine and its remarkable purity. Yves Klein registered this color as a trademark in 1957. This particular shade of blue is achieved through a specific chemical formula that involves mixing a synthetic ultramarine pigment with a special resin binder. The matte finish of IKB is a crucial aspect of its unique appearance, as it maximizes the color's intensity and creates a strong visual impact. The color aims to evoke a sense of boundlessness and infinity, mirroring the artist's philosophical views. It has been widely used in art, fashion, and design, retaining its iconic status due to its distinctive aesthetic and historical significance.

The hex color #0528ae, also known as International Klein Blue, presents significant accessibility challenges, especially concerning color contrast. When used as a foreground color for text or interactive elements, it requires careful consideration of the background color to ensure sufficient contrast for readability. According to WCAG (Web Content Accessibility Guidelines), the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. Due to its dark nature, #0528ae necessitates a very light background to meet these guidelines. Failure to provide adequate contrast can exclude users with visual impairments, such as those with low vision or color blindness. Therefore, thorough testing with accessibility tools and real users is crucial to validate the usability of this color in digital interfaces. When implementing, always prioritize the accessibility of the content by ensuring sufficient color contrast, providing alternative text for images, and using semantic HTML to improve the user experience for everyone.

Shades

Digital Color Formats

RGB
5 40 174
RGB5 40 174
Red
Green
Blue
HSL
227.57 94.41% 35.1%
227.5794.4135.1HSL
Hue
Saturation
Lightness
HWB
227.57 1.96% 31.76%
227.571.9631.76HWB
Hue
Whiteness
Blackness
hex#0528AE
rgb5 40 174
hsl227.57 94.41% 35.1%
cmyk97.13% 77.01% 0% 31.76%
hwb227.57 1.96% 31.76%
xyz8.46 4.61 40.49
CMYK
97.13% 77.01% 0% 31.76%
97.1377.01031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.46 4.61 40.49
8.464.6140.49XYZ
X
Y
Z

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