International Klein Blue

#0226B2

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine pigment and, notably, Klein's registration of this color formula as a trademark. The color is highly saturated and possesses a unique luminosity. Its captivating intensity has made it a popular choice in various creative fields, including art, fashion, and design. This distinctive blue hue, registered under patent number INPI 63471, stands out due to its remarkable purity and depth, offering a vibrant, matte finish that sets it apart from other blues.

The hex color #0226B2, also known as International Klein Blue, presents some accessibility challenges, particularly for users with visual impairments. Its very dark hue results in low contrast when used with similarly dark text or user interface elements. To ensure readability and usability, it is crucial to pair this color with light backgrounds or text colors, such as white (#FFFFFF) or very light shades of gray. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text, as specified by the Web Content Accessibility Guidelines (WCAG). Tools like contrast checkers can help verify compliance. Furthermore, avoid using this color as the sole indicator of interactive elements; supplement it with clear text labels or icons to accommodate users with color blindness. Thoughtful consideration of color choices is essential for creating inclusive and accessible digital experiences.

Shades

Digital Color Formats

RGB
2 38 178
RGB2 38 178
Red
Green
Blue
HSL
227.73 97.78% 35.29%
227.7397.7835.29HSL
Hue
Saturation
Lightness
HWB
227.73 0.78% 30.2%
227.730.7830.2HWB
Hue
Whiteness
Blackness
hex#0226B2
rgb2 38 178
hsl227.73 97.78% 35.29%
cmyk98.88% 78.65% 0% 30.2%
hwb227.73 0.78% 30.2%
xyz8.75 4.61 42.55
CMYK
98.88% 78.65% 0% 30.2%
98.8878.65030.2CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.75 4.61 42.55
8.754.6142.55XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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