International Klein Blue

#031AB0

About International Klein Blue

International Klein Blue, often abbreviated 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 pigment and Klein's patenting of the unique formula, which suspends the pigment in a resin that retains the color's brilliance. The color is renowned for its purity and intensity, evoking feelings of depth, spirituality, and boundlessness. Yves Klein used this color extensively in his monochrome paintings and sculptures, aiming to detach the color from any representational or functional role, allowing it to exist purely for its own sake. IKB has since become an iconic color in art, fashion, and design, symbolizing creativity and innovation. Its impact remains powerful, inspiring artists and designers worldwide.

The hex color #031AB0, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely dark nature results in very low contrast against lighter backgrounds, making text or interactive elements difficult to discern. To ensure inclusivity, web developers should avoid using this color for text or important interface components unless paired with a very light background color, such as white or a very pale yellow. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text, as per WCAG guidelines. Tools like contrast checkers can help verify compliance. Furthermore, consider providing alternative color schemes or user-adjustable contrast settings to accommodate individual user preferences and needs. Relying solely on color to convey information should be avoided; supplementary cues like labels or icons can enhance usability for all users, including those with color vision deficiencies.

Shades

Digital Color Formats

RGB
3 26 176
RGB3 26 176
Red
Green
Blue
HSL
232.02 96.65% 35.1%
232.0296.6535.1HSL
Hue
Saturation
Lightness
HWB
232.02 1.18% 30.98%
232.021.1830.98HWB
Hue
Whiteness
Blackness
hex#031AB0
rgb3 26 176
hsl232.02 96.65% 35.1%
cmyk98.3% 85.23% 0% 30.98%
hwb232.02 1.18% 30.98%
xyz8.24 3.89 41.39
CMYK
98.3% 85.23% 0% 30.98%
98.385.23030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.24 3.89 41.39
8.243.8941.39XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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