International Klein Blue

#033AA6

About International Klein Blue

International Klein Blue, represented by the hexadecimal color code #033AA6, is a deep and vivid shade of blue known for its striking intensity and historical significance. It was specifically developed by the French artist Yves Klein in collaboration with a paint supplier, seeking to capture the purest and most resonant expression of blue. Klein registered this color as a trademark, further solidifying its unique identity in the art world. This color is distinct due to its matte finish, which enhances its saturation and depth, making it appear almost otherworldly. It's widely recognized and appreciated for its powerful emotional impact and its association with creativity, spirituality, and the infinite expanse of the sky and sea. The color's unique quality makes it a favorite among designers and artists alike.

The color #033AA6, also known as International Klein Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it necessitates very light text (white or near-white) to ensure sufficient contrast for readability, ideally achieving a contrast ratio of at least 4.5:1 as recommended by WCAG guidelines. This can be checked using online contrast checkers. When used for text, the same principle applies, mandating a background color that is sufficiently light. Furthermore, designers should consider users with visual impairments, including color blindness. Since blue is one of the colors commonly affected by color vision deficiencies, relying solely on this color to convey information is inadvisable. Supplementing it with text labels or icons is crucial for universal accessibility. When using #033AA6, it's vital to test the design with various color blindness simulators to ensure the content remains understandable for all users.

Shades

Digital Color Formats

RGB
3 58 166
RGB3 58 166
Red
Green
Blue
HSL
219.75deg 96.45% 33.14%
219.7596.4533.14HSL
Hue
Saturation
Lightness
HWB
219.75deg 1.18% 34.9%
219.751.1834.9HWB
Hue
Whiteness
Blackness
hex#033AA6
rgb3 58 166
hsl219.75deg 96.45% 33.14%
cmyk98.19% 65.06% 0% 34.9%
hwb219.75deg 1.18% 34.9%
xyz-d650.08 0.06 0.37
oklch0.398 0.1811 262.19
oklab0.398 -0.02 -0.18
CMYK
98.19% 65.06% 0% 34.9%
98.1965.06034.9CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.06 0.37
0.080.060.37XYZ
X
Y
Z
OKLCH
0.398 0.1811 262.19
0.3980.1811262.19LCH
Lightness
Chroma
Hue
OKLAB
0.398 -0.02 -0.18
0.398-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons