International Klein Blue

#052EAF

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color in 1957. The color's unique vibrancy is a result of Klein's use of a matte, synthetic resin binder that allows the pigment to retain its intensity. Chemically, it's based on ultramarine pigment. The color is particularly associated with Klein's monochrome paintings, where he explored the emotional and spiritual impact of pure color. Its distinctive and memorable appearance has made it popular in art, fashion, and design. In the digital world, IKB is represented by the hex code #052EAF, showcasing its specific place in the color spectrum for digital design and representation.

The hex color #052EAF, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its dark hue necessitates very light text or foreground elements to ensure sufficient contrast for readability. According to WCAG (Web Content Accessibility Guidelines), a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using #052EAF as a background color requires careful selection of foreground colors to meet these standards. White (#FFFFFF) or very light shades of yellow or gray are often necessary. It's crucial to test color combinations using accessibility tools to verify compliance and ensure that users with visual impairments, including those with low vision or color blindness, can comfortably perceive the content. Ignoring these guidelines can result in content that is unreadable or difficult to interact with, leading to a poor user experience.

Shades

Digital Color Formats

RGB
5 46 175
RGB5 46 175
Red
Green
Blue
HSL
225.53deg 94.44% 35.29%
225.5394.4435.29HSL
Hue
Saturation
Lightness
HWB
225.53deg 1.96% 31.37%
225.531.9631.37HWB
Hue
Whiteness
Blackness
hex#052EAF
rgb5 46 175
hsl225.53deg 94.44% 35.29%
cmyk97.14% 73.71% 0% 31.37%
hwb225.53deg 1.96% 31.37%
xyz-d650.09 0.05 0.41
oklch0.3867 0.2056 264.11
oklab0.3867 -0.02 -0.2
CMYK
97.14% 73.71% 0% 31.37%
97.1473.71031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.41
0.090.050.41XYZ
X
Y
Z
OKLCH
0.3867 0.2056 264.11
0.38670.2056264.11LCH
Lightness
Chroma
Hue
OKLAB
0.3867 -0.02 -0.2
0.3867-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons