International Klein Blue

#0A37AA

General Information about International Klein Blue

International Klein Blue, represented by the hex code #0a37aa, is a deep, intense blue hue that is both captivating and memorable. It was originally created by the French artist Yves Klein, who sought to capture the purest expression of blue, a color often associated with the infinite and the spiritual. This particular shade of blue is known for its ultramarine pigment, which gives it a unique vibrancy and depth. It has been used extensively in art, design, and fashion to evoke feelings of creativity, sophistication, and a sense of wonder. Its distinctive character sets it apart from other blues, making it a popular choice for projects that aim to make a bold statement. The color is protected by trademark in France.

The hex color #0a37aa, also known as International Klein Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it requires light-colored text to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. Given the darkness of #0a37aa, a contrast check is essential. Using a color contrast checker tool is highly recommended to verify that the chosen text color meets accessibility standards. This ensures that users with visual impairments, including those with low vision or color blindness, can easily perceive the content. It is crucial to consider the user experience and adhere to accessibility best practices when incorporating this vibrant blue into web designs.

Shades

Digital Color Formats

RGB
10 55 170
RGB10 55 170
Red
Green
Blue
HSL
223.13deg 88.89% 35.29%
223.1388.8935.29HSL
Hue
Saturation
Lightness
HWB
223.13deg 3.92% 33.33%
223.133.9233.33HWB
Hue
Whiteness
Blackness
hex#0A37AA
rgb10 55 170
hsl223.13deg 88.89% 35.29%
cmyk94.12% 67.65% 0% 33.33%
hwb223.13deg 3.92% 33.33%
xyz-d650.09 0.06 0.39
oklch0.3976 0.1888 263.62
oklab0.3976 -0.02 -0.19
CMYK
94.12% 67.65% 0% 33.33%
94.1267.65033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.39
0.090.060.39XYZ
X
Y
Z
OKLCH
0.3976 0.1888 263.62
0.39760.1888263.62LCH
Lightness
Chroma
Hue
OKLAB
0.3976 -0.02 -0.19
0.3976-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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