Astronaut

#21406B

General Information about #21406B

The hexadecimal color code #21406B represents a dark shade of blue, often referred to as "Astronaut." It is composed of 12.9% red, 25.1% green, and 41.96% blue. In the RGB color model, this equates to 33 red, 64 green, and 107 blue. This specific hue is situated within the blue spectrum, leaning towards the deeper, more subdued tones. Colors similar to #21406B evoke feelings of calmness, stability, and sophistication. It is often associated with professionalism, trustworthiness, and intelligence. The color's darkness makes it suitable for backgrounds or accents in designs where a sense of depth and authority is desired. In various cultures, dark blue hues are frequently linked to knowledge, power, and integrity.

The color #21406B, also known as Astronaut, presents some accessibility challenges, particularly concerning color contrast. When using this color for text or interactive elements, it's crucial to ensure sufficient contrast against the background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using online contrast checkers can help verify compliance. Given the darkness of #21406B, lighter colors like whites, yellows, or light greens are better choices for text. For users with visual impairments, relying solely on color to convey information is not advisable; supplemental cues such as text labels or icons should be provided to ensure inclusivity and usability. Careful consideration of these factors will help create a more accessible and user-friendly design.

Shades

Digital Color Formats

RGB
33 64 107
RGB33 64 107
Red
Green
Blue
HSL
214.86deg 52.86% 27.45%
214.8652.8627.45HSL
Hue
Saturation
Lightness
HWB
214.86deg 12.94% 58.04%
214.8612.9458.04HWB
Hue
Whiteness
Blackness
hex#21406B
rgb33 64 107
hsl214.86deg 52.86% 27.45%
cmyk69.16% 40.19% 0% 58.04%
hwb214.86deg 12.94% 58.04%
xyz-d650.05 0.05 0.15
oklch0.3706 0.0831 257
oklab0.3706 -0.02 -0.08
CMYK
69.16% 40.19% 0% 58.04%
69.1640.19058.04CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.05 0.15
0.050.050.15XYZ
X
Y
Z
OKLCH
0.3706 0.0831 257
0.37060.0831257LCH
Lightness
Chroma
Hue
OKLAB
0.3706 -0.02 -0.08
0.3706-0.02-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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