International Klein Blue

#0036B4

About International Klein Blue

International Klein Blue (IKB), represented by the hexadecimal color code #0036B4, is a deep, vivid blue hue that was developed by the French artist Yves Klein. Klein patented this color in 1957, and it has since become a signature element of his artistic work. IKB is characterized by its intense saturation and ultramarine-like appearance, achieved through a unique formulation of a synthetic ultramarine pigment suspended in a clear resin binder. The color is intended to evoke a sense of boundless space and the immaterial, reflecting Klein's philosophical and artistic concepts. The color is used in visual arts and has had a lasting influence on the fields of design, fashion, and popular culture due to its captivating and evocative qualities.

The hex color #0036B4, also known as International Klein Blue, presents several accessibility considerations for web development. Its dark hue results in a high contrast ratio against white text, typically exceeding the WCAG's minimum requirement of 4.5:1 for AA compliance, making it suitable for headings and larger text. However, for smaller body text, careful evaluation is still recommended, and tools can verify contrast ratios with different text sizes and weights. When pairing #0036B4 with other colors, ensure sufficient contrast between them as well. For users with color vision deficiencies, avoid relying solely on color to convey important information; use alternative cues such as text labels, icons, or patterns to ensure inclusivity. Additionally, provide a high-contrast theme option that enhances readability for all users, especially those with visual impairments. Using this color as the sole indicator for interactive elements is discouraged because it may not meet accessibility guidelines for users with visual impairments. Consider adding an underline or bolding on hover for links to improve accessibility.

Shades

Digital Color Formats

RGB
0 54 180
RGB0 54 180
Red
Green
Blue
HSL
222 100% 35.29%
22210035.29HSL
Hue
Saturation
Lightness
HWB
222 0% 29.41%
222029.41HWB
Hue
Whiteness
Blackness
hex#0036B4
rgb0 54 180
hsl222 100% 35.29%
cmyk100% 70% 0% 29.41%
hwb222 0% 29.41%
xyz9.56 5.93 43.82
CMYK
100% 70% 0% 29.41%
10070029.41CMYK
Cyan
Magenta
Yellow
Key
XYZ
9.56 5.93 43.82
9.565.9343.82XYZ
X
Y
Z

Alternative colors

Applications

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