International Klein Blue

#0026C8

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein registered this color as a trademark in 1957. It is renowned for its intense saturation and visual impact. The unique quality of IKB stems from its matte, velvety finish, achieved by suspending pure ultramarine pigment in a synthetic resin. This finish allows the color to retain its brilliance and depth, making it visually captivating. IKB has been used in various artistic mediums, including painting, sculpture, and performance art. It symbolizes infinity, spirituality, and the boundless nature of human imagination. This color is perceived differently based on culture and the viewers' subjective experiences.

The hex color #0026c8, also known as International Klein Blue, presents specific accessibility considerations for web developers. Its deep blue hue offers a strong visual impact, but its low lightness value means it requires careful pairing with contrasting colors to ensure readability and usability. When using this color for text, it is imperative to use a light color, such as white or a very pale yellow, for the text to meet WCAG (Web Content Accessibility Guidelines) standards for contrast ratios. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Insufficient contrast can exclude users with low vision or color blindness. Also, avoid using #0026c8 as the sole indicator of interactive elements; supplement it with labels, icons, or other visual cues to ensure inclusivity for all users.

Shades

Digital Color Formats

RGB
0 38 200
RGB0 38 200
Red
Green
Blue
HSL
228.6deg 100% 39.22%
228.610039.22HSL
Hue
Saturation
Lightness
HWB
228.6deg 0% 21.57%
228.6021.57HWB
Hue
Whiteness
Blackness
hex#0026C8
rgb0 38 200
hsl228.6deg 100% 39.22%
cmyk100% 81% 0% 21.57%
hwb228.6deg 0% 21.57%
xyz-d650.11 0.06 0.55
oklch0.4041 0.2422 264.13
oklab0.4041 -0.02 -0.24
CMYK
100% 81% 0% 21.57%
10081021.57CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.06 0.55
0.110.060.55XYZ
X
Y
Z
OKLCH
0.4041 0.2422 264.13
0.40410.2422264.13LCH
Lightness
Chroma
Hue
OKLAB
0.4041 -0.02 -0.24
0.4041-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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