International Klein Blue

#0817AC

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 registered this color as a trademark in 1957, even though it was previously created with the help of a Parisian art paint supplier. The visual impact of IKB comes from its reliance on Ultramarine pigments, combined with a synthetic resin binder which allows the pigment to maintain its brilliance and intensity. The color is particularly known for its matte finish, which further enhances its depth and perceived purity. The color aims to evoke feelings of boundlessness, representing Klein's conception of space and the universe.

The color #0817AC, a deep blue, presents several accessibility considerations. Its dark nature means it generally offers good contrast against lighter backgrounds like white or very pale yellows. This high contrast ratio is crucial for users with low vision or color blindness, ensuring readability and ease of use. However, when pairing it with darker shades, especially other blues or purples, the contrast may become insufficient, leading to difficulties in distinguishing elements. Therefore, careful attention should be paid to color pairings. Text using #0817AC should ideally be larger or bolder to further enhance legibility. Additionally, avoid using it as the sole indicator of an interactive element (like a link), as colorblind users might miss it. Consider using underlines or icons alongside the color change to ensure inclusivity and accessibility for all users. Proper testing with accessibility tools is recommended to guarantee compliance with WCAG guidelines.

Shades

Digital Color Formats

RGB
8 23 172
RGB8 23 172
Red
Green
Blue
HSL
234.51 91.11% 35.29%
234.5191.1135.29HSL
Hue
Saturation
Lightness
HWB
234.51 3.14% 32.55%
234.513.1432.55HWB
Hue
Whiteness
Blackness
hex#0817AC
rgb8 23 172
hsl234.51 91.11% 35.29%
cmyk95.35% 86.63% 0% 32.55%
hwb234.51 3.14% 32.55%
xyz7.85 3.64 39.32
CMYK
95.35% 86.63% 0% 32.55%
95.3586.63032.55CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.85 3.64 39.32
7.853.6439.32XYZ
X
Y
Z

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