International Klein Blue

#0812AC

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color 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 suspends the color pigment and allows the pigment to maintain its original qualities. Some art critics have considered IKB as one of the most important colors ever created. Yves Klein used IKB in many of his monochrome paintings, sculptures, and performances. He sought to capture the purest expression of blue, believing it represented the boundless expanse of the sky and the sea.

The hex color #0812ac, also known as International Klein Blue, presents some accessibility challenges, particularly in text-based applications. Its dark hue results in low contrast against lighter backgrounds, potentially hindering readability for individuals with visual impairments. To ensure accessibility, it's crucial to pair this color with very light shades for text or interactive elements. Using contrast checker tools is highly recommended to verify compliance with WCAG (Web Content Accessibility Guidelines) standards. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is advised to meet Level AA requirements. Consideration should also be given to users with color blindness; relying solely on color to convey information should be avoided. Providing alternative visual cues, such as icons or text labels, is essential for inclusive design.

Shades

Digital Color Formats

RGB
8 18 172
RGB8 18 172
Red
Green
Blue
HSL
236.34 91.11% 35.29%
236.3491.1135.29HSL
Hue
Saturation
Lightness
HWB
236.34 3.14% 32.55%
236.343.1432.55HWB
Hue
Whiteness
Blackness
hex#0812AC
rgb8 18 172
hsl236.34 91.11% 35.29%
cmyk95.35% 89.53% 0% 32.55%
hwb236.34 3.14% 32.55%
xyz7.76 3.46 39.29
CMYK
95.35% 89.53% 0% 32.55%
95.3589.53032.55CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.76 3.46 39.29
7.763.4639.29XYZ
X
Y
Z

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