International Klein Blue

#032CB1

About International Klein Blue

International Klein Blue (IKB), with the hex code #032CB1, is a deep blue hue first mixed by the French artist Yves Klein. Klein registered this color as a trademark, and it has since become synonymous with his art and vision. IKB is characterized by its remarkable intensity and saturation, achieved through the suspension of pure color pigment in a clear synthetic resin. The color possesses a unique ultramarine depth that creates a visually captivating and immersive experience. This intense blue is thought to evoke feelings of boundlessness, depth, and the infinite. Its unique spectral properties arise from its chemical composition and method of preparation, influencing its interaction with light and perception.

The color #032CB1, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value (very dark) results in very poor contrast against white text or backgrounds, failing WCAG (Web Content Accessibility Guidelines) standards for sufficient contrast ratios. To ensure inclusivity, pairing this color with very light colors (such as white, cream, or light yellow) is essential. Using tools to check contrast ratios is highly recommended. Avoid using this color for critical information such as links or important form fields without proper contrast enhancement. Consider using a lighter shade of blue or adding a contrasting outline to improve legibility and overall accessibility. Providing alternative text descriptions for images using this color is also a good practice.

Shades

Digital Color Formats

RGB
3 44 177
RGB3 44 177
Red
Green
Blue
HSL
225.86deg 96.67% 35.29%
225.8696.6735.29HSL
Hue
Saturation
Lightness
HWB
225.86deg 1.18% 30.59%
225.861.1830.59HWB
Hue
Whiteness
Blackness
hex#032CB1
rgb3 44 177
hsl225.86deg 96.67% 35.29%
cmyk98.31% 75.14% 0% 30.59%
hwb225.86deg 1.18% 30.59%
xyz-d650.09 0.05 0.42
oklch0.3855 0.2102 264.05
oklab0.3855 -0.02 -0.21
CMYK
98.31% 75.14% 0% 30.59%
98.3175.14030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.42
0.090.050.42XYZ
X
Y
Z
OKLCH
0.3855 0.2102 264.05
0.38550.2102264.05LCH
Lightness
Chroma
Hue
OKLAB
0.3855 -0.02 -0.21
0.3855-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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