International Klein Blue

#0116B3

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. This specific shade of blue was developed as part of Klein's search to find a color that best evoked the feeling of pure space and limitless depth. Klein aimed to detach the color from its material representation, allowing it to express an almost spiritual quality. He patented IKB in 1957 to maintain its unique identity, ensuring it would not be replicated inaccurately. The color is created using a synthetic ultramarine pigment, which produces a rich and intense blue that stands out from ordinary blues. IKB has become associated with artistic innovation, modernism, and the exploration of consciousness.

The hex color #0116B3, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its very low luminance value of 0.006 makes it difficult to achieve sufficient contrast with lighter text or foreground elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text to ensure readability for users with visual impairments. Using #0116B3 as a background color necessitates extremely light foreground colors like white or very pale yellows to meet these contrast requirements. Careful consideration must be given to font sizes and weights, as thinner fonts may become illegible. When using this color, providing alternative high-contrast themes or enabling users to adjust color schemes is crucial to ensure inclusivity. Avoid using it for crucial information or interactive elements without proper contrast adjustments.

Shades

Digital Color Formats

RGB
1 22 179
RGB1 22 179
Red
Green
Blue
HSL
232.92 98.89% 35.29%
232.9298.8935.29HSL
Hue
Saturation
Lightness
HWB
232.92 0.39% 29.8%
232.920.3929.8HWB
Hue
Whiteness
Blackness
hex#0116B3
rgb1 22 179
hsl232.92 98.89% 35.29%
cmyk99.44% 87.71% 0% 29.8%
hwb232.92 0.39% 29.8%
xyz8.44 3.83 42.94
CMYK
99.44% 87.71% 0% 29.8%
99.4487.71029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.44 3.83 42.94
8.443.8342.94XYZ
X
Y
Z

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