International Klein Blue

#002EB3

General Information about International Klein Blue

International Klein Blue, represented by the hex code #002EB3, is a deep, vivid shade of blue that is highly saturated. It was developed by the French artist Yves Klein in collaboration with a Parisian paint dealer, Edouard Adam, specifically for his monochrome paintings. This particular shade of blue is known for its ultramarine-like depth and intensity, achieved by suspending pure color pigment in a clear synthetic resin. The color aims to capture the essence of blueness itself, evoking feelings of vastness and boundlessness. Klein patented the process to maintain the unique visual impact of his artwork, making it a signature element of his artistic identity. The color has since become iconic and is used in various fields, including art, design, and fashion.

The hex color #002EB3, also known as International Klein Blue, presents significant accessibility challenges, particularly in web design. Its deep saturation and low luminance result in poor contrast against both white and black backgrounds. This makes it difficult for users with visual impairments, such as those with low vision or color blindness, to perceive text or important interface elements rendered in this color. To ensure accessibility, it's crucial to avoid using #002EB3 as a primary text or interactive element color. When it is employed, a thorough contrast analysis should be conducted using tools like the WebAIM Contrast Checker to verify compliance with WCAG guidelines. Alternatives might include lighter shades or complementary colors to enhance readability and overall user experience. Designers should prioritize user needs and make informed color choices that promote inclusivity and usability for all.

Shades

Digital Color Formats

RGB
0 46 179
RGB0 46 179
Red
Green
Blue
HSL
224.58deg 100% 35.1%
224.5810035.1HSL
Hue
Saturation
Lightness
HWB
224.58deg 0% 29.8%
224.58029.8HWB
Hue
Whiteness
Blackness
hex#002EB3
rgb0 46 179
hsl224.58deg 100% 35.1%
cmyk100% 74.3% 0% 29.8%
hwb224.58deg 0% 29.8%
xyz-d650.09 0.05 0.43
oklch0.3903 0.211 263.62
oklab0.3903 -0.02 -0.21
CMYK
100% 74.3% 0% 29.8%
10074.3029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.43
0.090.050.43XYZ
X
Y
Z
OKLCH
0.3903 0.211 263.62
0.39030.211263.62LCH
Lightness
Chroma
Hue
OKLAB
0.3903 -0.02 -0.21
0.3903-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons