International Klein Blue

#0327B0

About International Klein Blue (#0327B0)

The hex color code #0327B0 represents a deep, saturated blue, often referred to as International Klein Blue (IKB). This color is renowned for its intense and captivating hue, achieved through a specific formulation that maximizes its visual impact. In the RGB color model, #0327B0 consists of 1.18% red, 15.29% green, and 69.02% blue. Its spectral properties make it a standout shade in the blue family. Historically, IKB was developed by the artist Yves Klein in collaboration with a Parisian paint dealer to capture and maintain the color's brilliance. The color is mostly used for its striking appeal in art, design, and branding. Its hexadecimal representation is a fundamental tool for digital artists and web developers seeking to incorporate this unique blue into their projects.

The hex color #0327B0, also known as International Klein Blue, presents significant accessibility challenges, particularly concerning color contrast. When used as text against a white background, it falls far short of WCAG (Web Content Accessibility Guidelines) requirements for contrast ratio. This means that users with visual impairments, such as low vision or color blindness, may find it difficult or impossible to read. To improve accessibility, consider pairing #0327B0 with much lighter colors like white (#FFFFFF) or very light grays for text. Alternatively, using #0327B0 for large graphical elements or as a background color paired with white text could be acceptable, but careful testing with accessibility tools is crucial. Always prioritize sufficient contrast to ensure content is perceivable to all users, adhering to a minimum contrast ratio of 4.5:1 for standard text and 3:1 for large text or graphical elements.

Shades

Digital Color Formats

RGB
3 39 176
RGB3 39 176
Red
Green
Blue
HSL
227.51 96.65% 35.1%
227.5196.6535.1HSL
Hue
Saturation
Lightness
HWB
227.51 1.18% 30.98%
227.511.1830.98HWB
Hue
Whiteness
Blackness
hex#0327B0
rgb3 39 176
hsl227.51 96.65% 35.1%
cmyk98.3% 77.84% 0% 30.98%
hwb227.51 1.18% 30.98%
xyz8.6 4.6 41.51
CMYK
98.3% 77.84% 0% 30.98%
98.377.84030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.6 4.6 41.51
8.64.641.51XYZ
X
Y
Z

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