Blue Charcoal

#030D18

General Information about Blue Charcoal

The hex color #030D18, also known as Blue Charcoal, is a very dark shade of blue with minimal luminance. It is composed of 1.18% red, 5.1% green, and 9.41% blue. In the RGB color model, it is represented as (3, 13, 24). This color is often associated with feelings of calmness, sophistication, and mystery. Due to its low brightness, it is typically used as a background color or an accent color rather than for primary text. When used in design, it's essential to pair it with lighter colors to ensure readability and visual balance. The color's subdued nature makes it a versatile choice for various applications, ranging from web design to interior decoration.

The hex color #030D18, also known as Blue Charcoal, presents significant accessibility challenges, particularly in text-based applications. Its extremely low luminance value means that it requires very light text (white or near-white) to achieve acceptable contrast ratios as defined by WCAG guidelines. Without sufficient contrast, individuals with visual impairments, including those with low vision or color blindness, may find it difficult or impossible to read text displayed against this background. When using #030D18, it is imperative to conduct thorough contrast checks using tools like the WebAIM Contrast Checker to ensure compliance with accessibility standards. Furthermore, avoid using this color for crucial interface elements or interactive components, as discoverability can be severely impacted. Providing alternative high-contrast themes or allowing users to customize color schemes can mitigate accessibility issues arising from the use of such a dark color.

Shades

Digital Color Formats

RGB
3 13 24
RGB3 13 24
Red
Green
Blue
HSL
211.43deg 77.78% 5.29%
211.4377.785.29HSL
Hue
Saturation
Lightness
HWB
211.43deg 1.18% 90.59%
211.431.1890.59HWB
Hue
Whiteness
Blackness
hex#030D18
rgb3 13 24
hsl211.43deg 77.78% 5.29%
cmyk87.5% 45.83% 0% 90.59%
hwb211.43deg 1.18% 90.59%
xyz-d650 0 0.01
oklch0.1547 0.0296 247.67
oklab0.1547 -0.01 -0.03
CMYK
87.5% 45.83% 0% 90.59%
87.545.83090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1547 0.0296 247.67
0.15470.0296247.67LCH
Lightness
Chroma
Hue
OKLAB
0.1547 -0.01 -0.03
0.1547-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons