International Klein Blue

#0335B0

About International Klein Blue

The hexadecimal color #0335B0, often referred to as International Klein Blue (IKB), is a deep and intense shade of blue. It is named after the French artist Yves Klein, who patented the color in 1957. Klein sought to create a blue that was as pure and intense as possible, believing it to represent the vastness of the sky and the sea. The color is achieved by suspending ultramarine pigment in a synthetic resin, which preserves the pigment's original intensity and brilliance. #0335B0 is often associated with depth, tranquility, and intellectual pursuits. In color psychology, blue is known to evoke feelings of calmness, stability, and trust. Its use in design and art can create a sense of sophistication and professionalism. It is a vibrant and expressive color that captivates the eye and inspires contemplation.

The color #0335B0, a deep blue, presents some accessibility challenges, particularly concerning color contrast. When used as a foreground color for text, it's crucial to ensure sufficient contrast against the background. According to WCAG guidelines, normal text requires a contrast ratio of at least 4.5:1, and large text requires a ratio of 3:1. Given the darkness of #0335B0, lighter colors like white, yellow, or light gray are generally recommended as background colors to meet these standards. Tools like WebAIM's contrast checker can be used to verify compliance. When used for interactive elements such as buttons or links, careful consideration should be given to providing visual cues beyond color alone, such as underlines or borders, to ensure usability for users with color vision deficiencies. It's also important to evaluate the color's effectiveness in various lighting conditions and on different devices.

Shades

Digital Color Formats

RGB
3 53 176
RGB3 53 176
Red
Green
Blue
HSL
222.66deg 96.65% 35.1%
222.6696.6535.1HSL
Hue
Saturation
Lightness
HWB
222.66deg 1.18% 30.98%
222.661.1830.98HWB
Hue
Whiteness
Blackness
hex#0335B0
rgb3 53 176
hsl222.66deg 96.65% 35.1%
cmyk98.3% 69.89% 0% 30.98%
hwb222.66deg 1.18% 30.98%
xyz-d650.09 0.06 0.42
oklch0.3991 0.1995 263.3
oklab0.3991 -0.02 -0.2
CMYK
98.3% 69.89% 0% 30.98%
98.369.89030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.42
0.090.060.42XYZ
X
Y
Z
OKLCH
0.3991 0.1995 263.3
0.39910.1995263.3LCH
Lightness
Chroma
Hue
OKLAB
0.3991 -0.02 -0.2
0.3991-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons