International Klein Blue

#052CAE

General Information about International Klein Blue

The hex color code #052CAE, also known as International Klein Blue (IKB), is a deep and vibrant shade of blue. This color is famous for its intense saturation and association with the French artist Yves Klein, who registered it as a trademark. IKB is created using a specific formula that maximizes the impact of the pigment, resulting in a visually striking and immersive experience. Its spectral composition is dominated by shorter wavelengths, which correspond to blue light, contributing to its perceived coolness and depth. In the RGB color model, it is composed of 2% red, 17% green, and 68% blue. The color is often associated with art, intellectualism, and sophistication.

The hex color #052CAE, a deep, saturated blue, presents significant accessibility challenges, particularly when used as a foreground color against a white background. Its low luminance value results in a very low contrast ratio, far below the WCAG (Web Content Accessibility Guidelines) recommended ratios of 4.5:1 for normal text and 3:1 for large text. This can make text very difficult to read for users with visual impairments, including those with low vision or color blindness. To improve accessibility, it's crucial to pair this color with a very light color such as white or very light gray, or to use it for large graphical elements where readability is not critical. However, even with larger elements, it's essential to ensure sufficient contrast. Consider using a color contrast checker to verify compliance with accessibility standards.

Shades

Digital Color Formats

RGB
5 44 174
RGB5 44 174
Red
Green
Blue
HSL
226.15deg 94.41% 35.1%
226.1594.4135.1HSL
Hue
Saturation
Lightness
HWB
226.15deg 1.96% 31.76%
226.151.9631.76HWB
Hue
Whiteness
Blackness
hex#052CAE
rgb5 44 174
hsl226.15deg 94.41% 35.1%
cmyk97.13% 74.71% 0% 31.76%
hwb226.15deg 1.96% 31.76%
xyz-d650.09 0.05 0.41
oklch0.3825 0.2064 264.24
oklab0.3825 -0.02 -0.21
CMYK
97.13% 74.71% 0% 31.76%
97.1374.71031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.41
0.090.050.41XYZ
X
Y
Z
OKLCH
0.3825 0.2064 264.24
0.38250.2064264.24LCH
Lightness
Chroma
Hue
OKLAB
0.3825 -0.02 -0.21
0.3825-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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