International Klein Blue

#0318B1

About International Klein Blue

International Klein Blue, often referred to as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color to maintain its unique visual impact. Chemically, it's a matte ultramarine pigment. IKB is renowned for its intensity and purity, conveying a sense of depth and boundlessness. It is achieved through a specific formula involving a synthetic resin binder that allows the pigment to retain its brilliance. This particular shade of blue is not commonly found in nature, which contributes to its allure and artistic significance. Because of its strong association with Yves Klein and his artistic legacy, IKB has become a symbol of innovation and creativity in the art world.

The color #0318B1, also known as International Klein Blue, presents significant accessibility challenges due to its extremely low luminance value. This deep, saturated blue falls far short of meeting WCAG (Web Content Accessibility Guidelines) standards for contrast ratio, particularly against white backgrounds. Text or interactive elements rendered in this color against a light background would be very difficult for users with visual impairments to discern. To improve accessibility, it's crucial to pair #0318B1 with much lighter colors that offer sufficient contrast. White is unsuitable. Furthermore, avoid using this color for crucial information or interactive elements without providing alternative cues, such as icons or text labels in a contrasting color. Providing sufficient spacing around elements using this color can also improve readability. Consider color blindness; ensure that information conveyed using #0318B1 is also available through other visual means.

Shades

Digital Color Formats

RGB
3 24 177
RGB3 24 177
Red
Green
Blue
HSL
232.76 96.67% 35.29%
232.7696.6735.29HSL
Hue
Saturation
Lightness
HWB
232.76 1.18% 30.59%
232.761.1830.59HWB
Hue
Whiteness
Blackness
hex#0318B1
rgb3 24 177
hsl232.76 96.67% 35.29%
cmyk98.31% 86.44% 0% 30.59%
hwb232.76 1.18% 30.59%
xyz8.3 3.85 41.9
CMYK
98.31% 86.44% 0% 30.59%
98.3186.44030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.3 3.85 41.9
8.33.8541.9XYZ
X
Y
Z

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