International Klein Blue

#0514AF

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. The color's remarkable intensity and purity are derived from its specific formulation, which involves suspending ultramarine pigment in a synthetic resin. Klein registered this color under patent in 1957 to preserve its uniqueness, and it has since become a recognizable tone in art and design. The color evokes feelings of boundlessness, depth, and the sublime. Its striking impact stems from its high saturation and near-absence of other hues, making it visually arresting. In RGB color space, #0514AF is composed of 2% red, 8% green and 69% blue, while in the CMYK color space, it consists of 97% cyan, 88% magenta, 0% yellow and 31% black.

The color #0514AF, also known as International Klein Blue, presents significant accessibility challenges, especially when used as text or interactive elements against a white or light background. Its low luminance value results in very poor contrast, failing to meet WCAG (Web Content Accessibility Guidelines) standards for sufficient color contrast ratios. This can make content difficult or impossible to read for users with visual impairments, including those with low vision or color blindness. To improve accessibility, consider using #0514AF sparingly for purely decorative purposes or pair it with much lighter colors like yellows, light greens, or even whites to create adequate contrast. Text using #0514AF should ideally be avoided unless large font sizes are used and paired with very light backgrounds. Always test color combinations with accessibility checkers to ensure compliance with WCAG guidelines and provide a better user experience for everyone. Consider using alternative blues with higher luminance for improved contrast.

Shades

Digital Color Formats

RGB
5 20 175
RGB5 20 175
Red
Green
Blue
HSL
234.71 94.44% 35.29%
234.7194.4435.29HSL
Hue
Saturation
Lightness
HWB
234.71 1.96% 31.37%
234.711.9631.37HWB
Hue
Whiteness
Blackness
hex#0514AF
rgb5 20 175
hsl234.71 94.44% 35.29%
cmyk97.14% 88.57% 0% 31.37%
hwb234.71 1.96% 31.37%
xyz8.05 3.63 40.83
CMYK
97.14% 88.57% 0% 31.37%
97.1488.57031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.05 3.63 40.83
8.053.6340.83XYZ
X
Y
Z

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