International Klein Blue

#0421B0

About International Klein Blue

International Klein Blue, represented by the hex code #0421B0, is a deep, vibrant shade of blue that is renowned for its intensity and visual impact. This color was originally developed by the French artist Yves Klein in collaboration with a paint chemist to achieve the most vivid expression of blue possible. It is characterized by its matte finish, which enhances the depth and purity of the pigment. IKB has a unique ability to evoke feelings of depth, spirituality, and the infinite. Its striking appearance makes it popular in art, fashion, and design. The color's historical significance and unique qualities contribute to its enduring appeal and recognition.

The hex color #0421B0, also known as International Klein Blue, presents significant accessibility challenges, especially for users with visual impairments. Its dark and saturated nature results in low contrast against lighter backgrounds, making text and interface elements difficult to read. To ensure accessibility, it is crucial to use a very light color for text or interactive elements. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. If used as a background, ensure that all foreground elements meet these contrast requirements. Tools like contrast checkers can help verify compliance. Consider providing alternative color schemes or allowing users to customize colors to improve accessibility for individuals with different visual needs. When implementing this color, careful consideration must be given to its impact on readability and user experience.

Shades

Digital Color Formats

RGB
4 33 176
RGB4 33 176
Red
Green
Blue
HSL
229.88 95.56% 35.29%
229.8895.5635.29HSL
Hue
Saturation
Lightness
HWB
229.88 1.57% 30.98%
229.881.5730.98HWB
Hue
Whiteness
Blackness
hex#0421B0
rgb4 33 176
hsl229.88 95.56% 35.29%
cmyk97.73% 81.25% 0% 30.98%
hwb229.88 1.57% 30.98%
xyz8.43 4.25 41.45
CMYK
97.73% 81.25% 0% 30.98%
97.7381.25030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.43 4.25 41.45
8.434.2541.45XYZ
X
Y
Z

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