International Klein Blue

#0125C9

About International Klein Blue

International Klein Blue, represented by the hex code #0125C9, is a deep, vibrant shade of blue known for its intensity and visual impact. It was developed by the French artist Yves Klein, who sought to create a blue that captured the essence of the sky and the sea. The color is created using a special matte synthetic resin, which enhances its saturation and makes it appear more luminous than traditional blue pigments. This particular shade of blue is often associated with creativity, spirituality, and the infinite. It is frequently used in art, fashion, and design to evoke a sense of depth and emotion. Its distinctive hue makes it a memorable and impactful choice for visual communication.

The hex color #0125c9, representing International Klein Blue, presents some accessibility challenges. Its low luminance value means that it requires careful consideration when used as text or as a background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is necessary for normal text and 3:1 for large text against its background to ensure readability for users with visual impairments. When using #0125c9, it's crucial to pair it with a very light color like white or a pale yellow to meet these contrast requirements. Furthermore, avoid using this color to convey important information without accompanying text or other visual cues, as users who are color blind may not be able to distinguish it effectively. Thoughtful design choices, such as using icons with sufficient contrast or providing alternative text descriptions, can significantly improve the accessibility of content using this vibrant blue hue. Proper testing with accessibility tools is recommended to ensure compliance.

Shades

Digital Color Formats

RGB
1 37 201
RGB1 37 201
Red
Green
Blue
HSL
229.2deg 99.01% 39.61%
229.299.0139.61HSL
Hue
Saturation
Lightness
HWB
229.2deg 0.39% 21.18%
229.20.3921.18HWB
Hue
Whiteness
Blackness
hex#0125C9
rgb1 37 201
hsl229.2deg 99.01% 39.61%
cmyk99.5% 81.59% 0% 21.18%
hwb229.2deg 0.39% 21.18%
xyz-d650.11 0.06 0.56
oklch0.4044 0.244 264.25
oklab0.4044 -0.02 -0.24
CMYK
99.5% 81.59% 0% 21.18%
99.581.59021.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.06 0.56
0.110.060.56XYZ
X
Y
Z
OKLCH
0.4044 0.244 264.25
0.40440.244264.25LCH
Lightness
Chroma
Hue
OKLAB
0.4044 -0.02 -0.24
0.4044-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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