International Klein Blue

#0831AC

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color to maintain its uniqueness and association with his artistic creations. It is characterized by its high saturation and ultramarine pigment, giving it a distinctive, almost velvety appearance. The color is not just a pigment but a symbol of Klein's artistic vision, representing the immaterial and the infinite. It has since been used in various applications, from art installations to fashion design, but always with a nod to its origin and the artist who made it famous. Its striking appearance is created by a specific formula, but its unique value lies in the historical and artistic context it brings.

The hex color #0831ac, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its dark hue results in low contrast against lighter backgrounds, making text and interactive elements difficult to discern. According to WCAG guidelines, sufficient contrast is crucial for readability and usability. To improve accessibility, consider pairing #0831ac with very light colors, such as #ffffff or #f0f0f0, to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Avoid using it for critical interface elements without careful consideration of contrast. Providing alternative text descriptions for images and ensuring keyboard navigability are also essential accessibility practices when using this color.

Shades

Digital Color Formats

RGB
8 49 172
RGB8 49 172
Red
Green
Blue
HSL
225deg 91.11% 35.29%
22591.1135.29HSL
Hue
Saturation
Lightness
HWB
225deg 3.14% 32.55%
2253.1432.55HWB
Hue
Whiteness
Blackness
hex#0831AC
rgb8 49 172
hsl225deg 91.11% 35.29%
cmyk95.35% 71.51% 0% 32.55%
hwb225deg 3.14% 32.55%
xyz-d650.09 0.05 0.4
oklch0.3888 0.1983 264.15
oklab0.3888 -0.02 -0.2
CMYK
95.35% 71.51% 0% 32.55%
95.3571.51032.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.4
0.090.050.4XYZ
X
Y
Z
OKLCH
0.3888 0.1983 264.15
0.38880.1983264.15LCH
Lightness
Chroma
Hue
OKLAB
0.3888 -0.02 -0.2
0.3888-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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