International Klein Blue

#051EAF

General Information about International Klein Blue

International Klein Blue (IKB), hex code #051EAF, is a deep blue hue first mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine pigment, as well as Klein's artistic vision, which links the color to immateriality and boundless space. He registered the color as a trademark, solidifying its place in art history. The color is often associated with modernity, art and sophistication. Its unique depth and intensity make it a bold option for designers. The color can be used in a variety of applications. Be aware of the contrast when using IKB as the background of the website, as the accessibility can be affected by the colors around it.

International Klein Blue (#051EAF) presents unique accessibility challenges due to its deep, saturated nature. When used as a background color, it's crucial to pair it with a very light text color (ideally white or a very pale yellow) to ensure sufficient contrast for readability. Tools like contrast checkers should be employed to verify a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text, as recommended by WCAG guidelines. Avoid using this color for small text or essential interface elements if adequate contrast cannot be achieved. When used for interactive elements, clearly indicate focus states, and provide alternative visual cues beyond color alone. It is important to consider users with visual impairments. Also, avoid using this color in situations of red/green color blindness. When possible, offer options to personalize the color scheme to better suit individual user needs and preferences.

Shades

Digital Color Formats

RGB
5 30 175
RGB5 30 175
Red
Green
Blue
HSL
231.18 94.44% 35.29%
231.1894.4435.29HSL
Hue
Saturation
Lightness
HWB
231.18 1.96% 31.37%
231.181.9631.37HWB
Hue
Whiteness
Blackness
hex#051EAF
rgb5 30 175
hsl231.18 94.44% 35.29%
cmyk97.14% 82.86% 0% 31.37%
hwb231.18 1.96% 31.37%
xyz8.26 4.06 40.9
CMYK
97.14% 82.86% 0% 31.37%
97.1482.86031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.26 4.06 40.9
8.264.0640.9XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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