Outer Space

#21353C

General Information

The hex color #21353C, also known as Outer Space, is a dark, muted shade of gray-green. It belongs to the family of cool colors and exudes a sense of sophistication and tranquility. This color is often associated with professionalism, elegance, and a modern aesthetic. In terms of color theory, #21353C has relatively low saturation and luminance, making it a versatile choice for backgrounds and accent elements in design. Its hexadecimal value translates to 13.33% red, 21.57% green, and 23.53% blue. The sRGB values are R:33, G:53, B:60. The CMYK values are C:0.45, M:0.11, Y:0.00, K:0.76

The hex color #21353C, also known as Outer Space, presents some accessibility challenges, especially when used for text. Its low luminance value of approximately 5% means that it requires very light text (white or near-white) to provide sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is needed for normal-sized text and 3:1 for large text to meet AA compliance. Using #21353C for text on a dark background will likely fail these criteria, making it difficult for users with visual impairments to read. For interactive elements, ensuring a contrast ratio of 3:1 against adjacent colors is essential. When using this color, careful consideration must be given to its pairing with other colors to ensure readability and usability for all users. Tools like contrast checkers are invaluable in this process.

Shades

Digital Color Formats

RGB
33 53 60
RGB33 53 60
Red
Green
Blue
HSL
195.56deg 29.03% 18.24%
195.5629.0318.24HSL
Hue
Saturation
Lightness
HWB
195.56deg 12.94% 76.47%
195.5612.9476.47HWB
Hue
Whiteness
Blackness
hex#21353C
rgb33 53 60
hsl195.56deg 29.03% 18.24%
cmyk45% 11.67% 0% 76.47%
hwb195.56deg 12.94% 76.47%
xyz-d650.03 0.03 0.05
oklch0.315 0.0285 221.97
oklab0.315 -0.02 -0.02
CMYK
45% 11.67% 0% 76.47%
4511.67076.47CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.05
0.030.030.05XYZ
X
Y
Z
OKLCH
0.315 0.0285 221.97
0.3150.0285221.97LCH
Lightness
Chroma
Hue
OKLAB
0.315 -0.02 -0.02
0.315-0.02-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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