International Klein Blue

#0139B3

About International Klein Blue

International Klein Blue, represented by the hex code #0139B3, is a deep and intense shade of blue. It is named after the French artist Yves Klein, who patented the color in 1957. Klein sought to create a blue that was as pure and vibrant as possible, believing that it could evoke a sense of the infinite. Chemically, the color is achieved through a specific combination of ultramarine pigment with a synthetic resin binder, which helps maintain the color's intensity and brilliance. The color has been used in various artistic and design applications, from paintings and sculptures to fashion and interior design, and is celebrated for its unique ability to capture attention and inspire contemplation. It is a color often associated with depth, stability, and confidence.

The color #0139B3, also known as International Klein Blue, presents certain accessibility challenges. Its dark hue results in a low contrast ratio against lighter backgrounds, potentially making text or interface elements difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for readability. To ensure accessibility, it's recommended to pair this color with very light shades, such as white or very pale yellows. Using online contrast checkers can help determine if the chosen color combination meets accessibility standards. Additionally, consider providing alternative visual cues, such as icons or text labels, to supplement color-based information and further enhance usability for all users.

Shades

Digital Color Formats

RGB
1 57 179
RGB1 57 179
Red
Green
Blue
HSL
221.12deg 98.89% 35.29%
221.1298.8935.29HSL
Hue
Saturation
Lightness
HWB
221.12deg 0.39% 29.8%
221.120.3929.8HWB
Hue
Whiteness
Blackness
hex#0139B3
rgb1 57 179
hsl221.12deg 98.89% 35.29%
cmyk99.44% 68.16% 0% 29.8%
hwb221.12deg 0.39% 29.8%
xyz-d650.1 0.06 0.43
oklch0.4089 0.199 262.76
oklab0.4089 -0.03 -0.2
CMYK
99.44% 68.16% 0% 29.8%
99.4468.16029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.1 0.06 0.43
0.10.060.43XYZ
X
Y
Z
OKLCH
0.4089 0.199 262.76
0.40890.199262.76LCH
Lightness
Chroma
Hue
OKLAB
0.4089 -0.03 -0.2
0.4089-0.03-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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