International Klein Blue

#0323C7

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine, as well as Klein's matte, synthetic resin binder, which allows the pigment to maintain its brilliance when suspended. The color is a specific shade of blue, achieved by mixing ultramarine pigment with a special transparent synthetic resin. The vivid and intense nature of IKB makes it a captivating color choice for various artistic and design applications. Its unique reflective properties contribute to its distinctive appearance and create a sense of depth and luminosity. The color is associated with Yves Klein's artistic explorations and his desire to evoke a sense of infinity and spirituality through his work. Because of the proprietary nature of the binding elements, the color is most associated with visual art and is difficult to use on a mass scale.

The color #0323C7, a deep and vibrant blue, presents significant accessibility challenges, especially in web design. Its low luminance value means it offers poor contrast against light backgrounds, potentially violating WCAG guidelines. Text rendered in this color on a white or light-colored background might be unreadable for users with visual impairments, including those with low vision or color blindness. To ensure inclusivity, it's crucial to pair this blue with very light fonts (white, off-white, light yellow) or use it sparingly for decorative elements rather than essential information. Using color contrast checkers is highly recommended. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended to meet AA standards. For AAA compliance, these ratios increase to 7:1 and 4.5:1, respectively. Avoid using this color alone to convey important information. Instead, combine it with text labels, icons, or other visual cues to ensure all users can perceive the content. Also, consider providing alternative color schemes to allow users to customize the display based on their preferences and needs, further enhancing accessibility.

Shades

Digital Color Formats

RGB
3 35 199
RGB3 35 199
Red
Green
Blue
HSL
230.2deg 97.03% 39.61%
230.297.0339.61HSL
Hue
Saturation
Lightness
HWB
230.2deg 1.18% 21.96%
230.21.1821.96HWB
Hue
Whiteness
Blackness
hex#0323C7
rgb3 35 199
hsl230.2deg 97.03% 39.61%
cmyk98.49% 82.41% 0% 21.96%
hwb230.2deg 1.18% 21.96%
xyz-d650.11 0.05 0.54
oklch0.4 0.2431 264.47
oklab0.4 -0.02 -0.24
CMYK
98.49% 82.41% 0% 21.96%
98.4982.41021.96CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.05 0.54
0.110.050.54XYZ
X
Y
Z
OKLCH
0.4 0.2431 264.47
0.40.2431264.47LCH
Lightness
Chroma
Hue
OKLAB
0.4 -0.02 -0.24
0.4-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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