Blue Charcoal

#031118

General Information about Blue Charcoal

The hex color #031118, also recognized as Blue Charcoal, is a profoundly dark and muted shade, reminiscent of deep ocean waters or the night sky. It belongs to the blue-gray color family, and its low brightness makes it appear almost black. In the RGB color model, it is composed of 1.2% red, 6.7% green, and 9.4% blue. This composition results in a subtle cool undertone, giving it a calming and sophisticated character. Colors like #031118 are often used to create a sense of depth, mystery, or seriousness in design and visual media. Its subtle nature allows it to be versatile across various applications, although contrast considerations are essential due to its low luminance.

The hex color #031118, also known as Blue Charcoal, presents significant accessibility challenges, particularly concerning color contrast. When used as a background color, it requires extremely light text (white or near-white) to ensure sufficient contrast for readability, meeting WCAG (Web Content Accessibility Guidelines) standards. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Due to its dark nature, using #031118 for text is generally discouraged unless paired with an exceptionally bright background. Careful consideration is vital to avoid excluding users with visual impairments. Designers should use color contrast analyzers to verify compliance and prioritize inclusivity. Providing alternative high-contrast themes is a good practice to ensure accessibility for all users. Always test color combinations with diverse user groups to validate accessibility assumptions.

Shades

Digital Color Formats

RGB
3 17 24
RGB3 17 24
Red
Green
Blue
HSL
200deg 77.78% 5.29%
20077.785.29HSL
Hue
Saturation
Lightness
HWB
200deg 1.18% 90.59%
2001.1890.59HWB
Hue
Whiteness
Blackness
hex#031118
rgb3 17 24
hsl200deg 77.78% 5.29%
cmyk87.5% 29.17% 0% 90.59%
hwb200deg 1.18% 90.59%
xyz-d650 0 0.01
oklch0.1678 0.0262 229.35
oklab0.1678 -0.02 -0.02
CMYK
87.5% 29.17% 0% 90.59%
87.529.17090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1678 0.0262 229.35
0.16780.0262229.35LCH
Lightness
Chroma
Hue
OKLAB
0.1678 -0.02 -0.02
0.1678-0.02-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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