Blue Charcoal

#031018

General Information about #031018

The hex color #031018, also known as Blue Charcoal, is a very dark shade of blue. It is composed of 1.18% red, 6.27% green, and 9.41% blue. In the RGB color space, it has the values (3, 16, 24). In the CMYK color space, its composition is 87.5% cyan, 33.33% magenta, 0% yellow, and 90.59% black. This color is often associated with sophistication, elegance, and a sense of depth. Due to its dark nature, it is frequently used as a background color or for creating shadows and subtle accents. When used effectively, Blue Charcoal can add a touch of refinement to various designs, from websites to print materials. However, due to its low luminance, it is important to ensure adequate contrast with foreground elements to maintain readability and accessibility.

The hex color #031018, also known as Blue Charcoal, presents significant accessibility challenges due to its extremely low luminance. With such a dark shade, ensuring sufficient contrast with text or other foreground elements is crucial. The Web Content Accessibility Guidelines (WCAG) require a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text against its background to meet Level AA compliance. Given the darkness of #031018, only very light colors like white or bright yellow would likely achieve acceptable contrast ratios. Careful consideration and testing are essential to ensure readability and usability for users with visual impairments. Using online contrast checkers can aid in selecting appropriate foreground colors and verifying compliance with accessibility standards. Designers and developers should prioritize user experience by providing alternative color schemes or themes that offer better contrast for users who may have difficulty perceiving the default color combination. Furthermore, it's crucial to avoid using color as the sole means of conveying information, as users with color blindness may not be able to distinguish between similar shades.

Shades

Digital Color Formats

RGB
3 16 24
RGB3 16 24
Red
Green
Blue
HSL
202.86deg 77.78% 5.29%
202.8677.785.29HSL
Hue
Saturation
Lightness
HWB
202.86deg 1.18% 90.59%
202.861.1890.59HWB
Hue
Whiteness
Blackness
hex#031018
rgb3 16 24
hsl202.86deg 77.78% 5.29%
cmyk87.5% 33.33% 0% 90.59%
hwb202.86deg 1.18% 90.59%
xyz-d650 0 0.01
oklch0.1645 0.0268 234.32
oklab0.1645 -0.02 -0.02
CMYK
87.5% 33.33% 0% 90.59%
87.533.33090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1645 0.0268 234.32
0.16450.0268234.32LCH
Lightness
Chroma
Hue
OKLAB
0.1645 -0.02 -0.02
0.1645-0.02-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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