Astronaut

#21487A

General Information

#21487A, also known as Astronaut, is a deep, muted shade of blue that evokes feelings of calmness, sophistication, and professionalism. It belongs to the blue color family, which is often associated with trust, stability, and intelligence. This hex color can be achieved by mixing specific proportions of red, green, and blue light. In the RGB color model, #21487A consists of 13% red, 28.2% green, and 47.8% blue. The color is often used in corporate branding, website design, and interior decoration to convey a sense of reliability and elegance. Its versatility allows it to be combined with various other colors, such as white, gray, or yellow, to create visually appealing and balanced compositions.

The hex color #21487A, also known as Astronaut, presents certain accessibility considerations, especially in web design. Its relatively dark hue means it requires careful selection of foreground colors to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #21487A as a background, lighter colors like white, yellow, or light grays are generally suitable for text and interactive elements. It's essential to test color combinations using accessibility tools to verify compliance and ensure that users with visual impairments can comfortably access content. Additionally, providing alternative styling options can further enhance accessibility for users with specific needs or preferences. Proper implementation of ARIA attributes can further improve the usability of web elements using this color.

Shades

Digital Color Formats

RGB
33 72 122
RGB33 72 122
Red
Green
Blue
HSL
213.71deg 57.42% 30.39%
213.7157.4230.39HSL
Hue
Saturation
Lightness
HWB
213.71deg 12.94% 52.16%
213.7112.9452.16HWB
Hue
Whiteness
Blackness
hex#21487A
rgb33 72 122
hsl213.71deg 57.42% 30.39%
cmyk72.95% 40.98% 0% 52.16%
hwb213.71deg 12.94% 52.16%
xyz-d650.06 0.06 0.19
oklch0.4002 0.0956 255.77
oklab0.4002 -0.02 -0.09
CMYK
72.95% 40.98% 0% 52.16%
72.9540.98052.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.06 0.19
0.060.060.19XYZ
X
Y
Z
OKLCH
0.4002 0.0956 255.77
0.40020.0956255.77LCH
Lightness
Chroma
Hue
OKLAB
0.4002 -0.02 -0.09
0.4002-0.02-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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