International Klein Blue

#0416B0

About International Klein Blue

International Klein Blue (IKB), also known as #0416B0, is a deep blue hue first synthesized by the French artist Yves Klein. Klein patented this color in 1957 to maintain its unique aesthetic impact in his artistic creations, particularly his monochrome paintings. IKB's intense saturation is achieved by suspending pure blue pigment in a synthetic resin, which preserves the color's vibrancy. The color has since become an iconic representation of Klein's artistic vision and his exploration of the infinite and immaterial. Its historical and artistic significance makes it more than just a color; it is a cultural symbol.

The color #0416B0, also known as International Klein Blue, presents significant accessibility challenges due to its extremely low luminance. Its contrast ratio against white backgrounds is very poor, making text and interactive elements difficult for users with visual impairments to perceive. To improve accessibility, it is strongly recommended to use this color sparingly, and only in combination with very light or white backgrounds. For text, a much lighter color such as a shade of yellow or a very pale blue should be used to ensure a sufficient contrast ratio, ideally exceeding the WCAG AA or AAA standards. Consider using a contrast checker tool to verify the contrast ratio before deploying any design that uses this color. Also, provide alternative visual cues and labels to ensure that information is not solely conveyed through color.

Shades

Digital Color Formats

RGB
4 22 176
RGB4 22 176
Red
Green
Blue
HSL
233.72 95.56% 35.29%
233.7295.5635.29HSL
Hue
Saturation
Lightness
HWB
233.72 1.57% 30.98%
233.721.5730.98HWB
Hue
Whiteness
Blackness
hex#0416B0
rgb4 22 176
hsl233.72 95.56% 35.29%
cmyk97.73% 87.5% 0% 30.98%
hwb233.72 1.57% 30.98%
xyz8.17 3.73 41.36
CMYK
97.73% 87.5% 0% 30.98%
97.7387.5030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.17 3.73 41.36
8.173.7341.36XYZ
X
Y
Z

Alternative colors

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