International Klein Blue

#023AA7

About International Klein Blue

International Klein Blue (IKB), represented by the hexadecimal color code #023AA7, is a deep, intense blue hue first synthesized by the French artist Yves Klein. Klein registered this color as a trademark in 1957. IKB's unique intensity stems from its reliance on a matte, synthetic resin binder, which allows the pigment to retain its brilliance without being dulled by light reflection. This color is often associated with art, creativity, and spirituality. It is rarely found in nature, adding to its distinctive and somewhat otherworldly quality. In color psychology, IKB is believed to inspire feelings of peace, tranquility, and intellectual stimulation, making it a popular choice for artists, designers, and brands seeking to convey a sense of sophistication and innovation.

The hex color #023aa7, a deep, vibrant blue known as International Klein Blue, presents significant accessibility challenges. Its low luminance contrast against both white and black backgrounds makes it difficult for users with visual impairments to perceive text or interactive elements. According to WCAG guidelines, it fails to meet the minimum contrast ratio requirements for normal-sized text (4.5:1) and large text (3:1). To improve accessibility, consider using a lighter tint of blue or pairing it with a light color like white or yellow. Additionally, provide sufficient non-color cues, such as text labels or icons, to ensure that information is conveyed to users who may not be able to distinguish colors effectively. Thoughtful consideration of color contrast is crucial for creating inclusive and usable web experiences.

Shades

Digital Color Formats

RGB
2 58 167
RGB2 58 167
Red
Green
Blue
HSL
219.64deg 97.63% 33.14%
219.6497.6333.14HSL
Hue
Saturation
Lightness
HWB
219.64deg 0.78% 34.51%
219.640.7834.51HWB
Hue
Whiteness
Blackness
hex#023AA7
rgb2 58 167
hsl219.64deg 97.63% 33.14%
cmyk98.8% 65.27% 0% 34.51%
hwb219.64deg 0.78% 34.51%
xyz-d650.09 0.06 0.37
oklch0.3988 0.1825 262.13
oklab0.3988 -0.02 -0.18
CMYK
98.8% 65.27% 0% 34.51%
98.865.27034.51CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.37
0.090.060.37XYZ
X
Y
Z
OKLCH
0.3988 0.1825 262.13
0.39880.1825262.13LCH
Lightness
Chroma
Hue
OKLAB
0.3988 -0.02 -0.18
0.3988-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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