International Klein Blue

#0534AE

About International Klein Blue

International Klein Blue (IKB), also known as #0534ae, is a deep blue hue first mixed by the French artist Yves Klein. Klein registered this color as a trademark in 1957. The visual impact of IKB comes from its heavy reliance on ultramarine pigment, as well as Klein's process of suspending the raw pigment in a clear synthetic resin. IKB is particularly associated with Klein's monochrome paintings, sculptures, and performances, where the color was used to evoke a sense of boundless space and spiritual depth. Klein believed that this particular shade of blue had a quality close to pure space and wanted to associate it with feelings. This color is iconic in the art world and is often used to represent creativity and innovation.

The hex color #0534ae, also known as International Klein Blue, presents accessibility challenges, particularly concerning color contrast. When used for text or interactive elements, it's crucial to ensure sufficient contrast against the background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text (14pt bold or 18pt regular) to meet AA compliance. Using a color contrast checker is highly recommended to verify compliance. For instance, white text on an International Klein Blue background may not meet the contrast requirements for smaller text sizes. To improve accessibility, consider pairing #0534ae with lighter shades or using it sparingly for decorative elements where contrast is less critical. Providing alternative text descriptions for images and icons that use this color is also essential.

Shades

Digital Color Formats

RGB
5 52 174
RGB5 52 174
Red
Green
Blue
HSL
223.31deg 94.41% 35.1%
223.3194.4135.1HSL
Hue
Saturation
Lightness
HWB
223.31deg 1.96% 31.76%
223.311.9631.76HWB
Hue
Whiteness
Blackness
hex#0534AE
rgb5 52 174
hsl223.31deg 94.41% 35.1%
cmyk97.13% 70.11% 0% 31.76%
hwb223.31deg 1.96% 31.76%
xyz-d650.09 0.06 0.41
oklch0.3956 0.1979 263.56
oklab0.3956 -0.02 -0.2
CMYK
97.13% 70.11% 0% 31.76%
97.1370.11031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.41
0.090.060.41XYZ
X
Y
Z
OKLCH
0.3956 0.1979 263.56
0.39560.1979263.56LCH
Lightness
Chroma
Hue
OKLAB
0.3956 -0.02 -0.2
0.3956-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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