International Klein Blue

#0028B0

About International Klein Blue

International Klein Blue, often referred to as IKB, is a deep blue hue famous for its intensity. French artist Yves Klein created and trademarked this specific shade in 1957. The color's impact arises from its purity and the matte finish of the paint Klein used, which allows for maximum absorption of light, giving the impression of the color extending beyond the surface. IKB is achieved using a synthetic ultramarine pigment and a matte, transparent binder. This color has become strongly associated with Klein's artistic exploration of the infinite and the immaterial. Beyond fine art, IKB has found applications in fashion, design, and branding, often chosen to evoke feelings of depth, innovation, and sophistication.

International Klein Blue, with its deep and saturated hue, presents accessibility considerations, especially in web design. When using this color for text, it's crucial to ensure sufficient contrast against the background. Given its darkness, pairing it with very light colors like white or pale yellow is recommended to meet WCAG (Web Content Accessibility Guidelines) standards for readability. Avoid using it for small text or intricate details if the background is also dark or similarly saturated. In user interface elements, consider the cognitive load – while visually striking, overuse can be overwhelming. Using it sparingly for key interactive elements like buttons can draw attention effectively. Also, remember to provide alternative visual cues, such as icons or text labels, for users with color vision deficiencies. Thoughtful application ensures inclusivity and optimal user experience.

Shades

Digital Color Formats

RGB
0 40 176
RGB0 40 176
Red
Green
Blue
HSL
226.36deg 100% 34.51%
226.3610034.51HSL
Hue
Saturation
Lightness
HWB
226.36deg 0% 30.98%
226.36030.98HWB
Hue
Whiteness
Blackness
hex#0028B0
rgb0 40 176
hsl226.36deg 100% 34.51%
cmyk100% 77.27% 0% 30.98%
hwb226.36deg 0% 30.98%
xyz-d650.09 0.05 0.42
oklch0.3779 0.2134 263.89
oklab0.3779 -0.02 -0.21
CMYK
100% 77.27% 0% 30.98%
10077.27030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.42
0.090.050.42XYZ
X
Y
Z
OKLCH
0.3779 0.2134 263.89
0.37790.2134263.89LCH
Lightness
Chroma
Hue
OKLAB
0.3779 -0.02 -0.21
0.3779-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons