International Klein Blue

#002BB8

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 registered this color as a trademark in 1957. The visual impact of IKB comes from its reliance on ultramarine pigment, as well as Klein's skillful use of a matte, synthetic resin binder that suspends the color pigment. This allows the pigment to maintain its original qualities and deliver maximum visual impact. IKB is particularly associated with Klein's monochrome paintings, sculptures, and performances. He sought to achieve a color that was pure and conveyed his concepts about space and the immaterial. The color has since become iconic and influential in the art world and beyond. It remains a striking and recognizable shade of blue.

The hex color #002BB8, also known as International Klein Blue, presents some accessibility challenges. Its very dark hue means that careful consideration must be given to its use as a background or text color. For text, it's crucial to ensure a high contrast ratio against the background to meet WCAG (Web Content Accessibility Guidelines) standards. A light color like white or a very pale yellow would likely be necessary for readability. If used as a background, elements must be clearly distinguishable. Consider users with visual impairments; providing alternative text and ensuring keyboard navigation is functional are essential. Avoid relying solely on color to convey information; supplement with text or icons. Using tools to check color contrast ratios can help to ensure accessibility compliance. Furthermore, evaluate the design with real users, including those with disabilities, to gather valuable feedback.

Shades

Digital Color Formats

RGB
0 43 184
RGB0 43 184
Red
Green
Blue
HSL
225.98deg 100% 36.08%
225.9810036.08HSL
Hue
Saturation
Lightness
HWB
225.98deg 0% 27.84%
225.98027.84HWB
Hue
Whiteness
Blackness
hex#002BB8
rgb0 43 184
hsl225.98deg 100% 36.08%
cmyk100% 76.63% 0% 27.84%
hwb225.98deg 0% 27.84%
xyz-d650.1 0.05 0.46
oklch0.3916 0.2199 263.86
oklab0.3916 -0.02 -0.22
CMYK
100% 76.63% 0% 27.84%
10076.63027.84CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.1 0.05 0.46
0.10.050.46XYZ
X
Y
Z
OKLCH
0.3916 0.2199 263.86
0.39160.2199263.86LCH
Lightness
Chroma
Hue
OKLAB
0.3916 -0.02 -0.22
0.3916-0.02-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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