International Klein Blue

#0119AB

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 created this vibrant shade of blue specifically for his monochrome paintings, and it became his signature color. It is renowned for its purity and intensity, achieving a unique depth that is visually striking. IKB is achieved by suspending a dry, matte, synthetic ultramarine pigment in a clear synthetic resin, maintaining its color characteristics. This color is more than just a pigment; it's a cultural icon, representing artistic innovation and a bold aesthetic. IKB is now a registered trademark.

The hex color #0119AB, also known as International Klein Blue, presents some accessibility challenges due to its deep, saturated hue. When used as a foreground color for text, it's crucial to ensure sufficient contrast against the background. White text on this blue generally provides good contrast, but lighter shades of gray or other colors might not meet WCAG (Web Content Accessibility Guidelines) standards for readability. Tools like contrast checkers can help verify compliance. As a background color, #0119AB should be paired with high-contrast foreground elements to ensure users with visual impairments can easily perceive the content. Avoid using this color for crucial interactive elements without adequate contrast, as it can be difficult to distinguish for some users. Consider providing alternative color schemes or high-contrast modes for enhanced accessibility.

Shades

Digital Color Formats

RGB
1 25 171
RGB1 25 171
Red
Green
Blue
HSL
231.53deg 98.84% 33.73%
231.5398.8433.73HSL
Hue
Saturation
Lightness
HWB
231.53deg 0.39% 32.94%
231.530.3932.94HWB
Hue
Whiteness
Blackness
hex#0119AB
rgb1 25 171
hsl231.53deg 98.84% 33.73%
cmyk99.42% 85.38% 0% 32.94%
hwb231.53deg 0.39% 32.94%
xyz-d650.08 0.04 0.39
oklch0.3532 0.2199 264.36
oklab0.3532 -0.02 -0.22
CMYK
99.42% 85.38% 0% 32.94%
99.4285.38032.94CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.04 0.39
0.080.040.39XYZ
X
Y
Z
OKLCH
0.3532 0.2199 264.36
0.35320.2199264.36LCH
Lightness
Chroma
Hue
OKLAB
0.3532 -0.02 -0.22
0.3532-0.02-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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