International Klein Blue

#0512AF

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 the infinite and the spiritual. The color's unique matte finish enhances its intensity, making it appear almost otherworldly. Chemically, IKB is a synthetic ultramarine pigment. The colour has been registered by the artist's family with the French INPI (National Institute of Industrial Property) since 1999. IKB has since become an iconic color in the art world and beyond, representing creativity, innovation, and a sense of the sublime. Its distinctiveness has led to its use in various applications, from fashion to interior design.

The hex color #0512af, also known as International Klein Blue, presents significant accessibility challenges due to its low luminance. When used as a foreground color against a white background, or vice versa, it fails to meet the contrast ratio guidelines set by WCAG (Web Content Accessibility Guidelines) for both normal text (4.5:1) and large text (3:1). This can make it difficult for users with visual impairments, such as low vision or color blindness, to read content. To improve accessibility, consider pairing this color with a much lighter shade for text or a darker shade for backgrounds to ensure sufficient contrast. Alternatively, avoid using this color for essential textual information or interactive elements. Using color contrast tools is highly recommended to verify compliance with accessibility standards and ensure a better user experience for everyone.

Shades

Digital Color Formats

RGB
5 18 175
RGB5 18 175
Red
Green
Blue
HSL
235.41 94.44% 35.29%
235.4194.4435.29HSL
Hue
Saturation
Lightness
HWB
235.41 1.96% 31.37%
235.411.9631.37HWB
Hue
Whiteness
Blackness
hex#0512AF
rgb5 18 175
hsl235.41 94.44% 35.29%
cmyk97.14% 89.71% 0% 31.37%
hwb235.41 1.96% 31.37%
xyz8.02 3.56 40.82
CMYK
97.14% 89.71% 0% 31.37%
97.1489.71031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.02 3.56 40.82
8.023.5640.82XYZ
X
Y
Z

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Applications

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