International Klein Blue

#0727B8

About International Klein Blue

International Klein Blue, represented by the hexadecimal color code #0727B8, is a deep, intense shade of blue known for its vibrancy and historical significance. Developed by the French artist Yves Klein, this color was specifically formulated to capture the purest expression of blue, evoking a sense of boundlessness and immersion. It achieves this effect through a unique matte finish, achieved by suspending pure blue pigment in a synthetic resin. Due to its unique and impactful appearance, the color has been widely adopted in art, fashion, and design. It's characterized by its high saturation and relatively low lightness, making it a visually striking color choice.

The hex color #0727B8, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value of approximately 2% means that text rendered in this color against a white background will have a very low contrast ratio, failing WCAG standards for readability. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. To improve accessibility, consider using a much lighter color for the text if #0727B8 is used as a background. Alternatively, use #0727B8 for text on a very light background, like white or a pale yellow, and adjust text sizes to be larger for improved readability. Testing with accessibility tools is crucial to ensure compliance.

Shades

Digital Color Formats

RGB
7 39 184
RGB7 39 184
Red
Green
Blue
HSL
229.15deg 92.67% 37.45%
229.1592.6737.45HSL
Hue
Saturation
Lightness
HWB
229.15deg 2.75% 27.84%
229.152.7527.84HWB
Hue
Whiteness
Blackness
hex#0727B8
rgb7 39 184
hsl229.15deg 92.67% 37.45%
cmyk96.2% 78.8% 0% 27.84%
hwb229.15deg 2.75% 27.84%
xyz-d650.09 0.05 0.46
oklch0.3873 0.2225 264.79
oklab0.3873 -0.02 -0.22
CMYK
96.2% 78.8% 0% 27.84%
96.278.8027.84CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.46
0.090.050.46XYZ
X
Y
Z
OKLCH
0.3873 0.2225 264.79
0.38730.2225264.79LCH
Lightness
Chroma
Hue
OKLAB
0.3873 -0.02 -0.22
0.3873-0.02-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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