International Klein Blue

#0314B0

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color in 1957. What sets IKB apart is its rich, intense tone, achieved by using a matte, synthetic resin binder that allows the pigment to maintain its brilliance. The color's unique visual impact has made it iconic in the art world. Its formula involves ultramarine pigment suspended in a clear synthetic resin, which retains the pigment particles and creates a velvety matte surface. Klein's intention was to create a blue that captured the essence of the sky and the sea, conveying a sense of infinite space and spiritual depth. Today, IKB remains widely recognized and is frequently used in both artistic and design contexts.

The hex color #0314B0, also known as International Klein Blue, presents significant accessibility challenges, primarily due to its low luminance. When used as a foreground color on a white or light background, the contrast ratio is drastically below the WCAG (Web Content Accessibility Guidelines) recommended levels. This can make text or interactive elements difficult to read, especially for users with visual impairments, such as low vision or color blindness. To improve accessibility, it is crucial to pair #0314B0 with very light or white backgrounds to achieve sufficient contrast. Alternatively, avoid using this color for essential text or interactive elements. Consider using it sparingly for decorative purposes or larger graphical elements where readability is not critical. Proper testing with accessibility evaluation tools is vital to ensure compliance with accessibility standards and a positive user experience for all individuals.

Shades

Digital Color Formats

RGB
3 20 176
RGB3 20 176
Red
Green
Blue
HSL
234.1 96.65% 35.1%
234.196.6535.1HSL
Hue
Saturation
Lightness
HWB
234.1 1.18% 30.98%
234.11.1830.98HWB
Hue
Whiteness
Blackness
hex#0314B0
rgb3 20 176
hsl234.1 96.65% 35.1%
cmyk98.3% 88.64% 0% 30.98%
hwb234.1 1.18% 30.98%
xyz8.12 3.65 41.35
CMYK
98.3% 88.64% 0% 30.98%
98.388.64030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.12 3.65 41.35
8.123.6541.35XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025