International Klein Blue

#0034B4

About International Klein Blue

International Klein Blue, or IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color to maintain its unique identity, and it has since become a recognizable and influential color in art, design, and fashion. IKB's vibrancy is achieved through the addition of a binding medium that maintains the pigment's intensity. The color is strongly associated with Klein's artistic explorations of the infinite and the spiritual. Its impact extends beyond the art world, influencing fields ranging from fashion to interior design, where it is often used to evoke feelings of depth, creativity, and sophistication. IKB maintains its original intensity because it does not include any color modifiers like white or black. This makes the color pure and vibrant.

The hex color #0034b4, also known as International Klein Blue, presents some accessibility challenges. Its dark hue results in a low contrast ratio when paired with lighter text colors like white or light gray, which can make content difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for readability. To improve accessibility, consider using a lighter shade of blue or pairing it with a very light color to ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Another approach is to use colorblindness simulators to check how the color is perceived by individuals with different types of color vision deficiencies. Avoid relying solely on color to convey important information; use text labels or icons in addition to color cues.

Shades

Digital Color Formats

RGB
0 52 180
RGB0 52 180
Red
Green
Blue
HSL
222.67 100% 35.29%
222.6710035.29HSL
Hue
Saturation
Lightness
HWB
222.67 0% 29.41%
222.67029.41HWB
Hue
Whiteness
Blackness
hex#0034B4
rgb0 52 180
hsl222.67 100% 35.29%
cmyk100% 71.11% 0% 29.41%
hwb222.67 0% 29.41%
xyz9.47 5.75 43.79
CMYK
100% 71.11% 0% 29.41%
10071.11029.41CMYK
Cyan
Magenta
Yellow
Key
XYZ
9.47 5.75 43.79
9.475.7543.79XYZ
X
Y
Z

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