International Klein Blue

#091BAB

About International Klein Blue

International Klein Blue, represented by the hexadecimal color code #091BAB, is a deep, saturated blue hue known for its unique intensity and visual impact. The color was developed by the French artist Yves Klein in collaboration with a Parisian pigment dealer. Klein sought to create a blue that would best express his concept of pure space and boundless energy. The pigment's formula is a synthetic ultramarine pigment combined with a special resin suspension, which allows the color to maintain its brilliance and depth. In the RGB color model, #091BAB is composed of 3.53% red, 10.59% green, and 72.94% blue. In the CMYK color model, it is composed of 95% cyan, 86% magenta, 0% yellow, and 27% black. This color is often associated with creativity, intellect, and depth, making it a popular choice for artistic and design applications where a strong visual statement is desired.

The hex color #091BAB, also known as International Klein Blue, presents several accessibility considerations for web developers. Its high saturation and relatively dark value mean that text rendered in white or very light colors will generally provide good contrast, meeting WCAG guidelines for readability. However, using this color for large blocks of text might cause eye strain due to its intensity. It is crucial to test the color contrast with the intended foreground text to ensure compliance with accessibility standards. Avoid using this color as the sole means of conveying information, and always provide alternative cues such as text labels or icons. When using this color for interactive elements like buttons or links, ensure sufficient visual distinction upon hover or focus states to aid users with visual impairments. Developers should use color contrast analyzers to verify compliance with accessibility guidelines to ensure the webpage is usable for people with visual disabilities.

Shades

Digital Color Formats

RGB
9 27 171
RGB9 27 171
Red
Green
Blue
HSL
233.33 90% 35.29%
233.339035.29HSL
Hue
Saturation
Lightness
HWB
233.33 3.53% 32.94%
233.333.5332.94HWB
Hue
Whiteness
Blackness
hex#091BAB
rgb9 27 171
hsl233.33 90% 35.29%
cmyk94.74% 84.21% 0% 32.94%
hwb233.33 3.53% 32.94%
xyz7.86 3.78 38.84
CMYK
94.74% 84.21% 0% 32.94%
94.7484.21032.94CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.86 3.78 38.84
7.863.7838.84XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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