Astronaut

#1F2779

General Information about #1F2779

The hexadecimal color #1f2779, often referred to as "Astronaut," is a dark shade of blue that belongs to the blue color family. It is composed of 12.2% red, 15.3% green, and 47.5% blue. In the RGB color space, it has values of R:31, G:39, and B:121. In the CMYK color space, its composition is 74.38% cyan, 67.77% magenta, 0% yellow, and 52.55% black. The color has a wavelength of approximately 473.19 nm. This color is often associated with feelings of trust, stability, and depth. Because of its dark nature, it's well suited for backgrounds where lighter text is present. Color #1f2779 is considered a cool color, often used to evoke a sense of calmness and professionalism.

The hex color #1f2779, also known as Astronaut, presents some accessibility challenges, especially when used as a background or text color. Its dark hue results in a low contrast ratio with lighter colors, potentially making text difficult to read for individuals with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. To ensure accessibility, pair #1f2779 with significantly lighter colors like white (#ffffff) or very light shades of gray. Avoid using it with mid-tone colors, as the contrast will likely be insufficient. When using #1f2779 for interactive elements like buttons or links, provide clear visual cues such as underlines or changes in color upon hover to improve usability for all users, including those with color vision deficiencies. Proper contrast testing using online tools is highly recommended during the design process.

Shades

Digital Color Formats

RGB
31 39 121
RGB31 39 121
Red
Green
Blue
HSL
234.67deg 59.21% 29.8%
234.6759.2129.8HSL
Hue
Saturation
Lightness
HWB
234.67deg 12.16% 52.55%
234.6712.1652.55HWB
Hue
Whiteness
Blackness
hex#1F2779
rgb31 39 121
hsl234.67deg 59.21% 29.8%
cmyk74.38% 67.77% 0% 52.55%
hwb234.67deg 12.16% 52.55%
xyz-d650.05 0.03 0.18
oklch0.3256 0.1379 271.83
oklab0.3256 0 -0.14
CMYK
74.38% 67.77% 0% 52.55%
74.3867.77052.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.03 0.18
0.050.030.18XYZ
X
Y
Z
OKLCH
0.3256 0.1379 271.83
0.32560.1379271.83LCH
Lightness
Chroma
Hue
OKLAB
0.3256 0 -0.14
0.32560-0.14LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons