International Klein Blue

#0237B2

General Information

International Klein Blue, represented by the hex code #0237B2, is a deep and vibrant shade of blue named after the French artist Yves Klein, who patented the color in the 1960s. Klein used this particular shade extensively in his artwork, aiming to evoke a sense of purity, infinity, and spirituality. Chemically, the color is achieved through a specific formulation of ultramarine pigment. In the RGB color model, #0237B2 is composed of 0.8% red, 21.6% green, and 69.8% blue. This color is often associated with feelings of stability, confidence, and authority, making it a popular choice for branding and design. Its intense saturation also makes it visually striking and memorable.

The hex color #0237B2, also known as International Klein Blue, presents some accessibility challenges, especially when used for text or user interface elements. Due to its relatively low lightness value, it may not provide sufficient contrast against lighter backgrounds, potentially making it difficult for users with visual impairments to read or interact with content. To ensure accessibility, it's crucial to pair this color with significantly lighter hues, such as whites or very light yellows, to meet WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. Tools like contrast checkers can help determine if the color combination provides adequate contrast for different levels of compliance. Additionally, consider providing alternative styling options for users who require higher contrast or have specific visual needs, ensuring an inclusive and user-friendly experience for everyone.

Shades

Digital Color Formats

RGB
2 55 178
RGB2 55 178
Red
Green
Blue
HSL
221.93deg 97.78% 35.29%
221.9397.7835.29HSL
Hue
Saturation
Lightness
HWB
221.93deg 0.78% 30.2%
221.930.7830.2HWB
Hue
Whiteness
Blackness
hex#0237B2
rgb2 55 178
hsl221.93deg 97.78% 35.29%
cmyk98.88% 69.1% 0% 30.2%
hwb221.93deg 0.78% 30.2%
xyz-d650.09 0.06 0.43
oklch0.4045 0.1999 263.05
oklab0.4045 -0.02 -0.2
CMYK
98.88% 69.1% 0% 30.2%
98.8869.1030.2CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.43
0.090.060.43XYZ
X
Y
Z
OKLCH
0.4045 0.1999 263.05
0.40450.1999263.05LCH
Lightness
Chroma
Hue
OKLAB
0.4045 -0.02 -0.2
0.4045-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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