International Klein Blue

#0216B2

General Information about #0216B2

The hex color #0216B2, often referred to as International Klein Blue, is a deep and intense shade of blue. It is characterized by its high saturation and relatively low brightness. In the RGB color model, it is composed of 0.8% red, 8.6% green, and 69.8% blue. This color falls into the blue color family and is perceived as a cool and calming hue. The color is known for its use by the French artist Yves Klein, who patented a specific formulation of this blue to ensure its unique depth and intensity. The color is often associated with depth, vastness, and the sublime. Its distinctiveness makes it a prominent choice in art, design, and branding where a strong visual statement is desired.

The hex color #0216B2, a deep shade of blue often associated with International Klein Blue, presents significant accessibility challenges, especially for users with visual impairments. Its low luminance value (approximately 2.3%) means that it requires extremely light text or graphical elements to provide sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using white text (#FFFFFF) on a background of #0216B2 yields a contrast ratio that barely meets the minimum requirement for large text, and fails entirely for regular text. Therefore, web developers should exercise extreme caution when using this color and should always perform thorough accessibility testing with various contrast analyzers and user groups. Consider alternative, lighter shades of blue or pairing it with very light contrasting colors to ensure content is accessible to all users, including those with low vision or color blindness. Proper use of ARIA attributes and semantic HTML can also enhance accessibility.

Shades

Digital Color Formats

RGB
2 22 178
RGB2 22 178
Red
Green
Blue
HSL
233.18 97.78% 35.29%
233.1897.7835.29HSL
Hue
Saturation
Lightness
HWB
233.18 0.78% 30.2%
233.180.7830.2HWB
Hue
Whiteness
Blackness
hex#0216B2
rgb2 22 178
hsl233.18 97.78% 35.29%
cmyk98.88% 87.64% 0% 30.2%
hwb233.18 0.78% 30.2%
xyz8.35 3.8 42.41
CMYK
98.88% 87.64% 0% 30.2%
98.8887.64030.2CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.35 3.8 42.41
8.353.842.41XYZ
X
Y
Z

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