International Klein Blue

#062AAE

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 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 matte, synthetic resin binder, which allows the pigment to retain its brilliance. This color is often associated with a sense of depth and infinity, and Klein used it extensively in his monochrome paintings and sculptures. It is a vibrant and intense blue that stands out due to its pure, unmixed quality. IKB has become an iconic color in the art world and continues to inspire artists and designers today and is known to be one of the most recognizable colors around the world. This intense color is rarely seen in nature.

The hex color #062aae, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its dark hue results in very low contrast against typical light backgrounds, such as white or light gray. This low contrast can make text and other elements difficult to read for users with visual impairments, including those with low vision or color blindness. To ensure accessibility, it is crucial to pair this color with very light foreground colors, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text, as specified by WCAG guidelines. Employing contrast checking tools during the design process is highly recommended. Additionally, avoid relying solely on color to convey information; use text labels or icons to provide redundancy and clarity for all users. Considering that a significant portion of the population experiences some form of color vision deficiency, this practice will make your designs more inclusive and user-friendly.

Shades

Digital Color Formats

RGB
6 42 174
RGB6 42 174
Red
Green
Blue
HSL
227.14deg 93.33% 35.29%
227.1493.3335.29HSL
Hue
Saturation
Lightness
HWB
227.14deg 2.35% 31.76%
227.142.3531.76HWB
Hue
Whiteness
Blackness
hex#062AAE
rgb6 42 174
hsl227.14deg 93.33% 35.29%
cmyk96.55% 75.86% 0% 31.76%
hwb227.14deg 2.35% 31.76%
xyz-d650.09 0.05 0.41
oklch0.3796 0.2082 264.49
oklab0.3796 -0.02 -0.21
CMYK
96.55% 75.86% 0% 31.76%
96.5575.86031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.41
0.090.050.41XYZ
X
Y
Z
OKLCH
0.3796 0.2082 264.49
0.37960.2082264.49LCH
Lightness
Chroma
Hue
OKLAB
0.3796 -0.02 -0.21
0.3796-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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