International Klein Blue

#051EAE

About International Klein Blue

International Klein Blue, identified by the hex code #051EAE, is a deep, saturated blue hue renowned for its intensity and captivating visual impact. It was developed by the French artist Yves Klein in collaboration with a Parisian paint supplier, who patented the unique formulation in 1956. The color's striking quality stems from its high concentration of pigment, which creates a sense of depth and luminosity. It is frequently used in art, design, and fashion to evoke feelings of infinity, spirituality, and transcendence. Its distinctive nature sets it apart from common blues, making it a sought-after choice for creators seeking a bold and memorable aesthetic.

The hex color #051EAE, also known as International Klein Blue, presents significant accessibility challenges. Its extremely dark hue results in very low contrast when paired with lighter colors, including white. According to WCAG guidelines, sufficient contrast is essential for readability and usability, especially for users with visual impairments. To ensure accessibility, developers should avoid using #051EAE as a background color with light text unless a very strong text shadow or outline is applied. Similarly, it is not recommended as a text color on light backgrounds. When utilizing #051EAE, consider pairing it with much lighter shades of yellow or cyan to meet contrast ratio requirements. Tools like WebAIM's Contrast Checker can help verify adherence to accessibility standards, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text.

Shades

Digital Color Formats

RGB
5 30 174
RGB5 30 174
Red
Green
Blue
HSL
231.12 94.41% 35.1%
231.1294.4135.1HSL
Hue
Saturation
Lightness
HWB
231.12 1.96% 31.76%
231.121.9631.76HWB
Hue
Whiteness
Blackness
hex#051EAE
rgb5 30 174
hsl231.12 94.41% 35.1%
cmyk97.13% 82.76% 0% 31.76%
hwb231.12 1.96% 31.76%
xyz8.17 4.02 40.39
CMYK
97.13% 82.76% 0% 31.76%
97.1382.76031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.17 4.02 40.39
8.174.0240.39XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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