Blue Charcoal

#00051B

General Information

The hex color code #00051B represents a very dark shade of blue, often described as Blue Charcoal. It's composed of 0% red, 1.96% green, and 10.59% blue. In the RGB color model, this translates to (0, 5, 27). The color is primarily used to create a deep, dark, and somewhat mysterious aesthetic. Given its low luminance, it is important to use it with lighter colors to provide sufficient contrast, particularly in text and user interface elements. The color sits near black in the color spectrum, making it ideal for backgrounds or accents where a subtle and understated elegance is desired. This color is very close to black, making it hard to distinguish shapes or fonts on a background with this color.

The color #00051B, a deep, dark blue charcoal, presents significant accessibility challenges. Its extremely low luminance means that text rendered in this color requires very light foreground colors to ensure sufficient contrast for readability. Following WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using this color for interactive elements, such as buttons or links, also necessitates careful consideration of focus states and hover effects to provide clear visual cues for users with visual impairments. Ensuring sufficient contrast is crucial for users with low vision or color blindness, enabling them to perceive content and interact effectively with the interface. Therefore, it's essential to pair #00051B with very light colors like white or very pale yellows to meet accessibility standards and provide an inclusive user experience.

Shades

Digital Color Formats

RGB
0 5 27
RGB0 5 27
Red
Green
Blue
HSL
228.89deg 100% 5.29%
228.891005.29HSL
Hue
Saturation
Lightness
HWB
228.89deg 0% 89.41%
228.89089.41HWB
Hue
Whiteness
Blackness
hex#00051B
rgb0 5 27
hsl228.89deg 100% 5.29%
cmyk100% 81.48% 0% 89.41%
hwb228.89deg 0% 89.41%
xyz-d650 0 0.01
oklch0.126 0.053 260.56
oklab0.126 -0.01 -0.05
CMYK
100% 81.48% 0% 89.41%
10081.48089.41CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.126 0.053 260.56
0.1260.053260.56LCH
Lightness
Chroma
Hue
OKLAB
0.126 -0.01 -0.05
0.126-0.01-0.05LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons