Astronaut

#21387A

General Information about #21387A

#21387A, also known as Astronaut, is a deep, muted shade of blue residing in the dark end of the color spectrum. It's a hex code representing a specific combination of red, green, and blue light intensities, precisely 21 red, 38 green, and 7A blue in hexadecimal notation. This color evokes feelings of calmness, stability, and intelligence. It's often associated with trustworthiness and professionalism. In color psychology, dark blues like #21387A are linked to depth of knowledge and expertise. The color family is blue, but it possesses a unique character due to its specific chromaticity, making it a versatile choice across various design applications.

The hex color #21387a, often referred to as 'Astronaut,' presents specific accessibility considerations for web development. Its relatively dark hue necessitates careful attention to contrast ratios when paired with text or other user interface elements. According to WCAG guidelines, sufficient contrast is crucial for users with visual impairments to perceive content effectively. A lighter background color, such as a pale yellow or a very light gray (#f0f0f0 or #ffffcc), is recommended to achieve a contrast ratio of at least 4.5:1 for standard text and 3:1 for large text. Employing contrast checking tools during the design phase is advisable to ensure compliance with accessibility standards, thus providing an inclusive experience for all users. Additionally, consider providing alternative visual cues, such as underlines or icons, for links and interactive elements when using #21387a to enhance usability.

Shades

Digital Color Formats

RGB
33 56 122
RGB33 56 122
Red
Green
Blue
HSL
224.49deg 57.42% 30.39%
224.4957.4230.39HSL
Hue
Saturation
Lightness
HWB
224.49deg 12.94% 52.16%
224.4912.9452.16HWB
Hue
Whiteness
Blackness
hex#21387A
rgb33 56 122
hsl224.49deg 57.42% 30.39%
cmyk72.95% 54.1% 0% 52.16%
hwb224.49deg 12.94% 52.16%
xyz-d650.06 0.05 0.19
oklch0.3627 0.1162 266.23
oklab0.3627 -0.01 -0.12
CMYK
72.95% 54.1% 0% 52.16%
72.9554.1052.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.05 0.19
0.060.050.19XYZ
X
Y
Z
OKLCH
0.3627 0.1162 266.23
0.36270.1162266.23LCH
Lightness
Chroma
Hue
OKLAB
0.3627 -0.01 -0.12
0.3627-0.01-0.12LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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