International Klein Blue

#0225A1

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. This specific shade of blue was developed as part of Klein's exploration of pure color and its ability to evoke emotion and spiritual depth. In 1957, Klein patented this color to maintain its unique identity and association with his artistic vision. IKB is known for its intense saturation and ultramarine pigment, which gives it a striking and almost otherworldly quality. It has been widely used in art, fashion, and design to create a sense of depth, sophistication, and visual impact. The color's distinctiveness ensures it remains a memorable and influential part of modern visual culture.

The hex color #0225a1, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its very dark hue results in low contrast against light backgrounds, potentially making text and interactive elements difficult for users with visual impairments to perceive. According to WCAG guidelines, sufficient contrast is essential for readability. To ensure accessibility, web developers should use this color sparingly, primarily for decorative elements rather than critical text or interactive components. When using #0225a1, always pair it with very light colors like white or very light grays to meet contrast ratio requirements. Furthermore, consider providing alternative high-contrast themes to accommodate users with specific visual needs. Tools like contrast checkers can help assess and adjust color pairings to meet accessibility standards and provide an inclusive user experience.

Shades

Digital Color Formats

RGB
2 37 161
RGB2 37 161
Red
Green
Blue
HSL
226.79deg 97.55% 31.96%
226.7997.5531.96HSL
Hue
Saturation
Lightness
HWB
226.79deg 0.78% 36.86%
226.790.7836.86HWB
Hue
Whiteness
Blackness
hex#0225A1
rgb2 37 161
hsl226.79deg 97.55% 31.96%
cmyk98.76% 77.02% 0% 36.86%
hwb226.79deg 0.78% 36.86%
xyz-d650.07 0.04 0.34
oklch0.3561 0.1982 264.12
oklab0.3561 -0.02 -0.2
CMYK
98.76% 77.02% 0% 36.86%
98.7677.02036.86CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.04 0.34
0.070.040.34XYZ
X
Y
Z
OKLCH
0.3561 0.1982 264.12
0.35610.1982264.12LCH
Lightness
Chroma
Hue
OKLAB
0.3561 -0.02 -0.2
0.3561-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons