International Klein Blue

#052CAF

General Information about International Klein Blue

International Klein Blue, often referred to as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein registered this color as a trademark in 1957. What sets IKB apart is its remarkable intensity and purity. The color is achieved through the suspension of pure ultramarine pigment in a synthetic resin, which allows the pigment to maintain its brilliance and depth. This intense blue evokes feelings of depth, infinity, and spirituality. It became a signature element in Klein's monochrome paintings and sculptures, representing his exploration of pure color as a means of conveying profound emotional and philosophical ideas. IKB has since transcended its origins in fine art to become a widely recognized and influential color in various fields.

International Klein Blue (#052CAF) presents some accessibility challenges, primarily due to its relatively low luminance. When used as a background color, sufficient contrast with foreground text is crucial to ensure readability, especially for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Foreground text colors like white or light yellow could work well. It is also important to consider color blindness. Using color alone to convey information should be avoided. Complementing color with text labels or icons can improve the experience for all users. Testing the color combination with accessibility tools is highly recommended.

Shades

Digital Color Formats

RGB
5 44 175
RGB5 44 175
Red
Green
Blue
HSL
226.24deg 94.44% 35.29%
226.2494.4435.29HSL
Hue
Saturation
Lightness
HWB
226.24deg 1.96% 31.37%
226.241.9631.37HWB
Hue
Whiteness
Blackness
hex#052CAF
rgb5 44 175
hsl226.24deg 94.44% 35.29%
cmyk97.14% 74.86% 0% 31.37%
hwb226.24deg 1.96% 31.37%
xyz-d650.09 0.05 0.41
oklch0.3836 0.2076 264.25
oklab0.3836 -0.02 -0.21
CMYK
97.14% 74.86% 0% 31.37%
97.1474.86031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.41
0.090.050.41XYZ
X
Y
Z
OKLCH
0.3836 0.2076 264.25
0.38360.2076264.25LCH
Lightness
Chroma
Hue
OKLAB
0.3836 -0.02 -0.21
0.3836-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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