International Klein Blue

#002DB4

About International Klein Blue

International Klein Blue, represented by the hex code #002DB4, is a deep, vivid blue hue renowned for its intensity and historical significance. It was developed by the French artist Yves Klein in collaboration with a Parisian paint supplier, and officially patented in 1957. Klein sought to capture the purest expression of blue, aiming for a color that would evoke a sense of boundless space and spiritual depth. The unique matte finish of IKB, achieved through the use of a synthetic resin binder, further enhances its luminosity and visual impact. This particular shade of blue has since become iconic, influencing art, fashion, and design across various cultures and creative disciplines. Its striking and memorable presence continues to captivate and inspire.

The hex color #002DB4, also known as International Klein Blue, presents specific accessibility challenges, particularly in web design. Its deep, saturated hue means that it requires careful consideration of color contrast ratios to ensure readability for users with visual impairments. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. When using #002DB4 as a background, it's crucial to pair it with a light color for text, such as white or a very light shade of yellow or gray, to meet these contrast requirements. Tools like WebAIM's contrast checker can be invaluable in assessing whether a given color combination is accessible. Failure to address these contrast issues can result in content that is difficult or impossible for some users to read, which can exclude individuals with low vision or color blindness. Therefore, careful planning and testing are necessary when incorporating this striking color into digital designs.

Shades

Digital Color Formats

RGB
0 45 180
RGB0 45 180
Red
Green
Blue
HSL
225 100% 35.29%
22510035.29HSL
Hue
Saturation
Lightness
HWB
225 0% 29.41%
225029.41HWB
Hue
Whiteness
Blackness
hex#002DB4
rgb0 45 180
hsl225 100% 35.29%
cmyk100% 75% 0% 29.41%
hwb225 0% 29.41%
xyz9.18 5.17 43.69
CMYK
100% 75% 0% 29.41%
10075029.41CMYK
Cyan
Magenta
Yellow
Key
XYZ
9.18 5.17 43.69
9.185.1743.69XYZ
X
Y
Z

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