International Klein Blue

#0515AF

About International Klein Blue

International Klein Blue (IKB), with the hex code #0515AF, is a deep, vivid shade of blue. It was developed by the French artist Yves Klein in collaboration with a Parisian paint dealer, Edouard Adam, to create a blue that was as pure and intense as possible. Klein wanted a color that would represent his artistic vision of the infinite and the immaterial. He patented the color in 1957, ensuring its unique status in the art world. IKB is known for its matte finish, which enhances its saturation and depth, making it visually striking and memorable. The color quickly became associated with Klein's work and continues to be a significant element in art and design.

The color #0515AF, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value of approximately 0.01 means that text rendered in this color against a white background, or vice versa, will fail WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. To ensure accessibility, it's crucial to avoid using #0515AF as a primary text or background color. When it is essential to use the color, consider pairing it with very light or white text. Providing sufficient contrast is critical for readability, especially for users with low vision or color blindness. Alternatives that meet accessibility standards should be explored wherever possible. Providing alternatives for conveying the information represented by this color is necessary, especially when the content is crucial.

Shades

Digital Color Formats

RGB
5 21 175
RGB5 21 175
Red
Green
Blue
HSL
234.35 94.44% 35.29%
234.3594.4435.29HSL
Hue
Saturation
Lightness
HWB
234.35 1.96% 31.37%
234.351.9631.37HWB
Hue
Whiteness
Blackness
hex#0515AF
rgb5 21 175
hsl234.35 94.44% 35.29%
cmyk97.14% 88% 0% 31.37%
hwb234.35 1.96% 31.37%
xyz8.07 3.66 40.84
CMYK
97.14% 88% 0% 31.37%
97.1488031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.07 3.66 40.84
8.073.6640.84XYZ
X
Y
Z

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