International Klein Blue

#0524AE

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein sought to create a blue that best expressed his concept of unbounded space and the infinite. He collaborated with a Parisian paint supplier to develop a matte, synthetic resin binder that allowed the pigment to retain its pure, intense color. This specific shade of blue is renowned for its remarkable saturation and depth, evoking feelings of serenity and boundlessness. The color was officially patented by Klein in 1957, securing its place in art history and visual culture. Its unique characteristics make it stand out from other blue colors, making it the artist’s personal signature.

The hex color #0524AE, also known as International Klein Blue, presents several accessibility considerations for web developers. Its high level of saturation and deep hue mean it has inherently low luminance. When used as a foreground color, it's crucial to pair it with a very light background to ensure sufficient contrast for readability, adhering to WCAG guidelines for color contrast ratios. Conversely, as a background, it needs a very bright foreground color. Developers should avoid using this color for essential interactive elements or text smaller than 18pt as it can strain the eyes of users, especially those with visual impairments. Additionally, refrain from relying solely on this color to convey information; supplement it with text labels or icons for accessibility. Thoroughly test combinations with color contrast tools to ensure compliance with accessibility standards.

Shades

Digital Color Formats

RGB
5 36 174
RGB5 36 174
Red
Green
Blue
HSL
228.99 94.41% 35.1%
228.9994.4135.1HSL
Hue
Saturation
Lightness
HWB
228.99 1.96% 31.76%
228.991.9631.76HWB
Hue
Whiteness
Blackness
hex#0524AE
rgb5 36 174
hsl228.99 94.41% 35.1%
cmyk97.13% 79.31% 0% 31.76%
hwb228.99 1.96% 31.76%
xyz8.33 4.35 40.44
CMYK
97.13% 79.31% 0% 31.76%
97.1379.31031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.33 4.35 40.44
8.334.3540.44XYZ
X
Y
Z

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