International Klein Blue

#0335B1

About International Klein Blue

International Klein Blue (IKB), with the hexadecimal color code #0335B1, is a deep blue hue renowned for its intensity and unique matte finish. This particular shade was developed by the French artist Yves Klein in collaboration with a Parisian paint dealer, aiming to capture the purest and most vivid expression of blue. Klein patented IKB in 1957 to preserve its distinctive quality. The color's impact stems from its ability to evoke feelings of boundlessness, spirituality, and the infinite. Its creation involved suspending pure color pigment in a resin that maintained the pigment's original intensity, providing a velvety texture that absorbs light rather than reflecting it. Due to its depth, accessibility should always be considered during application.

The color #0335B1, also known as International Klein Blue, presents significant accessibility challenges, especially for users with visual impairments. Its dark hue results in a low contrast ratio against lighter backgrounds, making text and interface elements difficult to read. To improve accessibility, it's crucial to pair this color with very light shades like white or pale yellow to ensure sufficient contrast. Adhering to WCAG guidelines is essential, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Additionally, consider providing alternative color schemes that offer better contrast for users with different visual needs. Avoid using #0335B1 for critical interactive elements or conveying important information without sufficient contrast.

Shades

Digital Color Formats

RGB
3 53 177
RGB3 53 177
Red
Green
Blue
HSL
222.76deg 96.67% 35.29%
222.7696.6735.29HSL
Hue
Saturation
Lightness
HWB
222.76deg 1.18% 30.59%
222.761.1830.59HWB
Hue
Whiteness
Blackness
hex#0335B1
rgb3 53 177
hsl222.76deg 96.67% 35.29%
cmyk98.31% 70.06% 0% 30.59%
hwb222.76deg 1.18% 30.59%
xyz-d650.09 0.06 0.42
oklch0.4001 0.2008 263.33
oklab0.4001 -0.02 -0.2
CMYK
98.31% 70.06% 0% 30.59%
98.3170.06030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.42
0.090.060.42XYZ
X
Y
Z
OKLCH
0.4001 0.2008 263.33
0.40010.2008263.33LCH
Lightness
Chroma
Hue
OKLAB
0.4001 -0.02 -0.2
0.4001-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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