International Klein Blue

#0B34A8

General Information about International Klein Blue

International Klein Blue (IKB), represented by the hexadecimal color code #0b34a8, is a deep, vivid blue pigment first synthesized by the French artist Yves Klein. Klein registered this color as a trademark in 1957. IKB's unique intensity and luminosity are achieved through a specific formulation involving a synthetic resin binder that suspends the pigment and allows it to maintain its brilliance. The color is celebrated for its ultramarine depth, often associated with concepts of spirituality, infinity, and the sublime. In color theory, it's a tertiary color, positioned between blue and violet on the color wheel. Its striking presence and evocative qualities make it a favorite in art, design, and fashion, where it's used to convey boldness, innovation, and a sense of the otherworldly. The pigment is known for matte finish because of the way it reflects light and creates a strong visual impact.

The hex color #0b34a8, also known as International Klein Blue, presents several accessibility considerations for web developers. Its dark hue results in a strong contrast with white text, typically ensuring good readability, which is crucial for users with visual impairments. However, when paired with other dark colors, the contrast ratio may fall below the WCAG (Web Content Accessibility Guidelines) recommended levels. It's important to use contrast analysis tools to verify sufficient contrast, especially for text and interactive elements. Additionally, avoid using this color as the sole indicator of functionality, such as links, as colorblind users might miss it. Providing supplementary cues like underlines or icons enhances inclusivity. Thorough testing with different color vision deficiency simulations is advisable to guarantee usability for all users. Consider that cultural interpretations of color can vary; in some contexts, blue might convey trust or authority, which could influence user perception and interaction.

Shades

Digital Color Formats

RGB
11 52 168
RGB11 52 168
Red
Green
Blue
HSL
224.33deg 87.71% 35.1%
224.3387.7135.1HSL
Hue
Saturation
Lightness
HWB
224.33deg 4.31% 34.12%
224.334.3134.12HWB
Hue
Whiteness
Blackness
hex#0B34A8
rgb11 52 168
hsl224.33deg 87.71% 35.1%
cmyk93.45% 69.05% 0% 34.12%
hwb224.33deg 4.31% 34.12%
xyz-d650.08 0.05 0.38
oklch0.3903 0.1896 264.07
oklab0.3903 -0.02 -0.19
CMYK
93.45% 69.05% 0% 34.12%
93.4569.05034.12CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.05 0.38
0.080.050.38XYZ
X
Y
Z
OKLCH
0.3903 0.1896 264.07
0.39030.1896264.07LCH
Lightness
Chroma
Hue
OKLAB
0.3903 -0.02 -0.19
0.3903-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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