International Klein Blue

#0430B0

About International Klein Blue

International Klein Blue, with the hex code #0430B0, is a deep, saturated blue hue closely associated with the French artist Yves Klein. Klein registered this color as a trademark in France, making it a distinctive part of his artistic identity. The color is known for its intense vibrancy and depth, evoking feelings of infinity and transcendence. It is created through a specific combination of ultramarine pigment and a synthetic resin binder, which enhances its saturation. In the RGB color model, #0430B0 is composed of 1.6% red, 18.8% green, and 69% blue. Its prominence in art and design stems from its unique ability to capture and reflect light, creating a captivating visual experience. The color's intensity is perceived differently by different individuals, often linked to unique sensory and emotional responses.

The hex color #0430B0, also known as International Klein Blue, presents significant accessibility challenges. Its deep, saturated hue results in very low contrast with lighter text or elements. This can make it difficult for users with visual impairments, such as those with low vision or color blindness, to discern content effectively. According to WCAG (Web Content Accessibility Guidelines), sufficient contrast is crucial for readability and usability. Using #0430B0 as a background color with light text would likely fail contrast ratio tests, particularly for WCAG AA and AAA compliance. To improve accessibility, consider pairing it with much lighter shades of yellow, white, or grey to ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Alternatively, using #0430B0 sparingly, perhaps as an accent color or for purely decorative purposes, can minimize its impact on accessibility. Thorough testing with accessibility tools is recommended to validate the color's compliance with accessibility standards.

Shades

Digital Color Formats

RGB
4 48 176
RGB4 48 176
Red
Green
Blue
HSL
224.65deg 95.56% 35.29%
224.6595.5635.29HSL
Hue
Saturation
Lightness
HWB
224.65deg 1.57% 30.98%
224.651.5730.98HWB
Hue
Whiteness
Blackness
hex#0430B0
rgb4 48 176
hsl224.65deg 95.56% 35.29%
cmyk97.73% 72.73% 0% 30.98%
hwb224.65deg 1.57% 30.98%
xyz-d650.09 0.05 0.42
oklch0.3909 0.2048 263.86
oklab0.3909 -0.02 -0.2
CMYK
97.73% 72.73% 0% 30.98%
97.7372.73030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.42
0.090.050.42XYZ
X
Y
Z
OKLCH
0.3909 0.2048 263.86
0.39090.2048263.86LCH
Lightness
Chroma
Hue
OKLAB
0.3909 -0.02 -0.2
0.3909-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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