International Klein Blue

#0413B0

General Information about International Klein Blue

International Klein Blue, often referred to as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Its intense color saturation sets it apart. Klein patented this specific formula to preserve its uniqueness. The color achieves its visual impact through a specific matte, synthetic resin binder which suspends the pigment and allows the pigment to maintain its brilliance. IKB's unique visual effect stems from its high concentration of pigment and the resin's ability to minimize light reflection. This creates a sense of depth and intensity that few other colors can match. It is often associated with art, spirituality, and a sense of boundlessness.

When using #0413B0 (International Klein Blue) in web design, it's crucial to consider accessibility. Due to its deep hue and low luminance, it presents significant challenges for users with visual impairments. Insufficient contrast against white or light backgrounds can make text and interactive elements difficult to read. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. This color often falls short, necessitating careful pairing with lighter colors like white, light yellow, or light gray for text and interactive elements. Providing alternative color schemes or allowing users to adjust color preferences can enhance usability for those with visual sensitivities. It's important to use colorblindness simulators to ensure content remains understandable for individuals with different types of color vision deficiencies.

Shades

Digital Color Formats

RGB
4 19 176
RGB4 19 176
Red
Green
Blue
HSL
234.77 95.56% 35.29%
234.7795.5635.29HSL
Hue
Saturation
Lightness
HWB
234.77 1.57% 30.98%
234.771.5730.98HWB
Hue
Whiteness
Blackness
hex#0413B0
rgb4 19 176
hsl234.77 95.56% 35.29%
cmyk97.73% 89.2% 0% 30.98%
hwb234.77 1.57% 30.98%
xyz8.12 3.63 41.35
CMYK
97.73% 89.2% 0% 30.98%
97.7389.2030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.12 3.63 41.35
8.123.6341.35XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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