Astronaut

#183A71

General Information about #183A71

The hex color #183A71, often referred to as "Astronaut", is a deep, muted shade of blue belonging to the broader family of blue hues. In the RGB color model, it is composed of 9.41% red, 22.75% green, and 44.31% blue. This color evokes feelings of calmness, stability, and trustworthiness, making it a popular choice in various design applications. Colors in the blue family are frequently associated with dependability and security, which makes it well-suited for corporate branding and web design. Its subdued nature allows it to be used effectively as a background color, providing a backdrop that does not overwhelm other elements on the page. It is not a primary color.

The hex color #183A71, also known as Astronaut, presents specific accessibility considerations for web developers. Its relatively dark hue means careful attention must be paid to color contrast, particularly when used for text or interactive elements. According to WCAG guidelines, sufficient contrast between foreground and background colors is crucial for users with visual impairments to perceive content effectively. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #183A71, ensure that any text or interactive elements layered on top meet these contrast requirements, possibly necessitating the use of very light text colors like white or off-white. Tools like contrast checkers can assist in verifying compliance. Additionally, avoid relying solely on color to convey information; use supplementary cues such as text labels or icons to enhance accessibility for all users.

Shades

Digital Color Formats

RGB
24 58 113
RGB24 58 113
Red
Green
Blue
HSL
217.08deg 64.96% 26.86%
217.0864.9626.86HSL
Hue
Saturation
Lightness
HWB
217.08deg 9.41% 55.69%
217.089.4155.69HWB
Hue
Whiteness
Blackness
hex#183A71
rgb24 58 113
hsl217.08deg 64.96% 26.86%
cmyk78.76% 48.67% 0% 55.69%
hwb217.08deg 9.41% 55.69%
xyz-d650.05 0.04 0.16
oklch0.3562 0.1031 259.66
oklab0.3562 -0.02 -0.1
CMYK
78.76% 48.67% 0% 55.69%
78.7648.67055.69CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.04 0.16
0.050.040.16XYZ
X
Y
Z
OKLCH
0.3562 0.1031 259.66
0.35620.1031259.66LCH
Lightness
Chroma
Hue
OKLAB
0.3562 -0.02 -0.1
0.3562-0.02-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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