International Klein Blue

#0317B0

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. Klein sought to create a blue that best represented his concepts of immateriality and transcendence. The color is achieved by mixing ultramarine pigment with a synthetic resin binder, which allows the pigment to maintain its intensity and vibrancy. IKB is more than just a color; it's a statement. It’s a registered trademark under the name International Klein Blue (IKB) and has found its way into various artistic and design applications due to its unique saturation and visual impact.

The color #0317B0, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value of 0.004 makes it difficult to perceive against typical light backgrounds. According to WCAG guidelines, it fails the contrast ratio test against white (#FFFFFF) for normal text (4.5:1) and large text (3:1). To ensure accessibility, this color should be paired with very light colors like white or very pale yellows for sufficient contrast. Avoid using it for critical information or interactive elements without careful consideration of contrast. Using tools to check color contrast ratios is highly recommended to ensure compliance with accessibility standards and provide a usable experience for all users. Text using this color requires careful consideration.

Shades

Digital Color Formats

RGB
3 23 176
RGB3 23 176
Red
Green
Blue
HSL
233.06 96.65% 35.1%
233.0696.6535.1HSL
Hue
Saturation
Lightness
HWB
233.06 1.18% 30.98%
233.061.1830.98HWB
Hue
Whiteness
Blackness
hex#0317B0
rgb3 23 176
hsl233.06 96.65% 35.1%
cmyk98.3% 86.93% 0% 30.98%
hwb233.06 1.18% 30.98%
xyz8.18 3.77 41.37
CMYK
98.3% 86.93% 0% 30.98%
98.386.93030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.18 3.77 41.37
8.183.7741.37XYZ
X
Y
Z

Alternative colors

Applications

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