Blue Charcoal

#040C18

General Information about #040C18

The hex color #040C18, also known as Blue Charcoal, is a very dark shade of blue, almost appearing black. It is composed of 1.57% red, 4.71% green, and 9.41% blue. In the RGB color model, it is represented as (4, 12, 24). This color has a subdued and sophisticated quality, evoking feelings of depth, mystery, and understated elegance. Due to its darkness, it is often used to create a sense of drama or to provide a strong contrast against lighter elements. In color psychology, dark blues are often associated with trustworthiness, stability, and authority, making this color a suitable choice for brands and designs that want to convey these qualities.

The hex color #040C18, also known as Blue Charcoal, presents significant accessibility challenges due to its very dark nature. Its low luminance results in poor contrast against typical light-colored backgrounds, making it difficult for individuals with visual impairments to read text or discern elements using this color. To ensure accessibility, it is crucial to use #040C18 only with very light foreground colors that provide a high contrast ratio, ideally exceeding the WCAG's minimum requirement of 4.5:1 for normal text and 3:1 for large text. Avoid using this color for critical UI elements or informational text without carefully evaluating the contrast to accommodate users with varying visual abilities. Testing with accessibility evaluation tools is highly recommended to confirm compliance with accessibility standards.

Shades

Digital Color Formats

RGB
4 12 24
RGB4 12 24
Red
Green
Blue
HSL
216deg 71.43% 5.49%
21671.435.49HSL
Hue
Saturation
Lightness
HWB
216deg 1.57% 90.59%
2161.5790.59HWB
Hue
Whiteness
Blackness
hex#040C18
rgb4 12 24
hsl216deg 71.43% 5.49%
cmyk83.33% 50% 0% 90.59%
hwb216deg 1.57% 90.59%
xyz-d650 0 0.01
oklch0.1526 0.0298 254.82
oklab0.1526 -0.01 -0.03
CMYK
83.33% 50% 0% 90.59%
83.3350090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1526 0.0298 254.82
0.15260.0298254.82LCH
Lightness
Chroma
Hue
OKLAB
0.1526 -0.01 -0.03
0.1526-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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