Blue Charcoal

#030F17

General Information about #030F17

The hex color #030F17, also known as Blue Charcoal, is a very dark shade of blue, bordering on black. It is composed of 1.18% red, 5.88% green, and 9.02% blue. In the RGB color model, it is represented as RGB(3, 15, 23). This color is often associated with feelings of calmness, sophistication, and mystery due to its deep, muted tone. It is rarely found in nature in its pure form, but it can be reminiscent of the night sky or deep ocean waters. In web design and graphic design, #030F17 can be used to create a sense of depth and seriousness. However, its darkness requires careful consideration of contrast to ensure readability and accessibility.

The hex color #030F17, often referred to as Blue Charcoal, presents significant accessibility challenges, particularly in text-based applications. Due to its very low luminance, it provides insufficient contrast against typical light-colored backgrounds like white. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. #030F17 falls far short of these recommendations when paired with white or similarly light backgrounds. Therefore, it is crucial to avoid using this color for text or important interface elements without a carefully chosen, much lighter foreground color. When using #030F17 for decorative purposes, such as backgrounds or borders, ensure that adjacent interactive elements meet the necessary contrast ratios to maintain accessibility for all users, including those with visual impairments. Employing color contrast analyzers is highly advisable to verify compliance with accessibility standards.

Shades

Digital Color Formats

RGB
3 15 23
RGB3 15 23
Red
Green
Blue
HSL
204deg 76.92% 5.1%
20476.925.1HSL
Hue
Saturation
Lightness
HWB
204deg 1.18% 90.98%
2041.1890.98HWB
Hue
Whiteness
Blackness
hex#030F17
rgb3 15 23
hsl204deg 76.92% 5.1%
cmyk86.96% 34.78% 0% 90.98%
hwb204deg 1.18% 90.98%
xyz-d650 0 0.01
oklch0.1605 0.0261 235.88
oklab0.1605 -0.01 -0.02
CMYK
86.96% 34.78% 0% 90.98%
86.9634.78090.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1605 0.0261 235.88
0.16050.0261235.88LCH
Lightness
Chroma
Hue
OKLAB
0.1605 -0.01 -0.02
0.1605-0.01-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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