Blue Charcoal

#00031A

General Information about Blue Charcoal

#00031A, also known as Blue Charcoal, is a very dark shade of blue with minimal luminance. Its RGB values are R:0, G:3, B:26, and its CMYK values are C:100, M:88, Y:0, K:90. In the sRGB color space, its coordinates are x:0.154, y:0.058. This color is often associated with sophistication, mystery, and depth. Due to its darkness, it's generally not recommended for extensive use in text or user interface elements without careful consideration for contrast and accessibility. Historically, dark blues like this have been used to evoke feelings of calm and authority. Its hexadecimal representation makes it easily usable in digital design applications.

The hex color #00031A, also known as Blue Charcoal, presents significant accessibility challenges, especially in web design. Its extremely low luminance makes it difficult to achieve sufficient contrast against lighter backgrounds, a crucial requirement for WCAG compliance. Text rendered in this color on a white background, for example, would likely fail even the basic contrast ratio thresholds, rendering it unreadable for users with visual impairments. Similarly, interactive elements like buttons or links using #00031A risk being missed entirely. Designers must use extremely light foreground colors to ensure readability, or incorporate larger font sizes to partially compensate. Further, relying on color alone to convey information with #00031A would violate accessibility best practices, as colorblind users would be unable to perceive the intended meaning. Thorough testing with accessibility evaluation tools is crucial when using such a dark color. Consideration should also be given to providing alternative high-contrast themes.

Shades

Digital Color Formats

RGB
0 3 26
RGB0 3 26
Red
Green
Blue
HSL
233.08deg 100% 5.1%
233.081005.1HSL
Hue
Saturation
Lightness
HWB
233.08deg 0% 89.8%
233.08089.8HWB
Hue
Whiteness
Blackness
hex#00031A
rgb0 3 26
hsl233.08deg 100% 5.1%
cmyk100% 88.46% 0% 89.8%
hwb233.08deg 0% 89.8%
xyz-d650 0 0.01
oklch0.1157 0.0568 262.75
oklab0.1157 -0.01 -0.06
CMYK
100% 88.46% 0% 89.8%
10088.46089.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1157 0.0568 262.75
0.11570.0568262.75LCH
Lightness
Chroma
Hue
OKLAB
0.1157 -0.01 -0.06
0.1157-0.01-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons