Blue Charcoal

#040B14

General Information about Blue Charcoal

The hexadecimal color code #040B14, also known as Blue Charcoal, is a dark, muted shade of blue. It is composed of 1.57% red, 4.31% green, and 7.84% blue. In the RGB color model, it is represented as (4, 11, 20). This color is often associated with sophistication, calmness, and depth. It is commonly used in designs where a subtle and understated aesthetic is desired. Due to its low brightness, it is crucial to consider contrast ratios when using it for text or interactive elements to ensure accessibility. Blue Charcoal can evoke feelings of tranquility and stability, making it suitable for branding in industries aiming to convey trust and reliability.

The color #040B14, also known as Blue Charcoal, presents significant accessibility challenges due to its low luminance. Its contrast ratio against standard white (#FFFFFF) is very poor, making it difficult for individuals with visual impairments to discern text or graphics rendered in this color. To improve accessibility, it is strongly recommended to pair #040B14 with much lighter colors for text and interactive elements. Consider using tools to check color contrast ratios to ensure compliance with WCAG guidelines. A minimum contrast ratio of 4.5:1 is recommended for standard text and 3:1 for large text. Furthermore, avoid using #040B14 as the sole indicator of functionality, as users with color blindness may not be able to perceive it. Supplement color cues with text labels or icons to provide redundant information and enhance usability for all users.

Shades

Digital Color Formats

RGB
4 11 20
RGB4 11 20
Red
Green
Blue
HSL
213.75deg 66.67% 4.71%
213.7566.674.71HSL
Hue
Saturation
Lightness
HWB
213.75deg 1.57% 92.16%
213.751.5792.16HWB
Hue
Whiteness
Blackness
hex#040B14
rgb4 11 20
hsl213.75deg 66.67% 4.71%
cmyk80% 45% 0% 92.16%
hwb213.75deg 1.57% 92.16%
xyz-d650 0 0.01
oklch0.1464 0.0238 250.72
oklab0.1464 -0.01 -0.02
CMYK
80% 45% 0% 92.16%
8045092.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1464 0.0238 250.72
0.14640.0238250.72LCH
Lightness
Chroma
Hue
OKLAB
0.1464 -0.01 -0.02
0.1464-0.01-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons