Blue Charcoal

#030B18

General Information About Blue Charcoal

The color #030B18, also known as Blue Charcoal, is a very dark, muted shade of blue, categorized within the broader family of blue hues. It is composed of 1.18% red, 4.31% green, and 9.41% blue. In the RGB color space, it translates to 3 red, 11 green, and 24 blue. This composition places it towards the lower end of the color spectrum in terms of brightness and saturation. Blue Charcoal evokes a sense of depth, calmness, and sophistication, making it a popular choice in designs aiming for a subtle and refined aesthetic. Its dark nature often requires careful consideration of contrast when used in conjunction with text or other visual elements to ensure readability and accessibility.

The hex color #030B18, also known as Blue Charcoal, presents significant accessibility challenges, particularly in text-based applications. Its extremely low luminance results in very poor contrast against virtually any lighter background. This poses readability issues for users with low vision or color blindness. According to WCAG guidelines, sufficient contrast ratios are essential for ensuring content is perceivable. For normal text (14 points), a contrast ratio of at least 4.5:1 is needed, and for large text (18 points), a ratio of 3:1 is necessary. #030B18 falls far short of these requirements, making it unsuitable for primary text or important UI elements without careful consideration of foreground color choices. To mitigate these accessibility issues, consider using much lighter text colors, such as whites or very pale yellows, and ensure thorough testing with accessibility evaluation tools.

Shades

Digital Color Formats

RGB
3 11 24
RGB3 11 24
Red
Green
Blue
HSL
217.14deg 77.78% 5.29%
217.1477.785.29HSL
Hue
Saturation
Lightness
HWB
217.14deg 1.18% 90.59%
217.141.1890.59HWB
Hue
Whiteness
Blackness
hex#030B18
rgb3 11 24
hsl217.14deg 77.78% 5.29%
cmyk87.5% 54.17% 0% 90.59%
hwb217.14deg 1.18% 90.59%
xyz-d650 0 0.01
oklch0.1483 0.0323 254.96
oklab0.1483 -0.01 -0.03
CMYK
87.5% 54.17% 0% 90.59%
87.554.17090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1483 0.0323 254.96
0.14830.0323254.96LCH
Lightness
Chroma
Hue
OKLAB
0.1483 -0.01 -0.03
0.1483-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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