Blue Charcoal

#000A1A

General Information about #000A1A

The hex color #000A1A, often referred to as Blue Charcoal, is a very dark shade of blue. In the RGB color model, it consists of 0% red, 3.92% green, and 10.2% blue. This composition gives it a deep, muted tone reminiscent of charcoal with a subtle blue undertone. Its primary characteristic is its low luminance, making it appear almost black to the human eye. Due to its darkness, #000A1A is often used in contexts where a subtle, understated color is desired, such as backgrounds in digital interfaces or as an accent color in graphic design. It's crucial to consider accessibility when using this color, ensuring sufficient contrast with foreground elements to maintain readability. In web design, this could mean pairing it with very light text or interactive elements.

The hex color #000A1A, also known as Blue Charcoal, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value means that text or interactive elements rendered in this color require very light foreground colors to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using #000A1A for text or backgrounds without careful consideration of contrast can result in content that is unreadable or difficult to perceive, thereby excluding users. Designers and developers must prioritize testing color combinations with accessibility tools to ensure compliance and inclusivity. Utilizing color contrast analyzers can help verify that the chosen foreground and background colors meet the minimum contrast requirements, enhancing the overall user experience.

Shades

Digital Color Formats

RGB
0 10 26
RGB0 10 26
Red
Green
Blue
HSL
216.92deg 100% 5.1%
216.921005.1HSL
Hue
Saturation
Lightness
HWB
216.92deg 0% 89.8%
216.92089.8HWB
Hue
Whiteness
Blackness
hex#000A1A
rgb0 10 26
hsl216.92deg 100% 5.1%
cmyk100% 61.54% 0% 89.8%
hwb216.92deg 0% 89.8%
xyz-d650 0 0.01
oklch0.1431 0.0413 250.7
oklab0.1431 -0.01 -0.04
CMYK
100% 61.54% 0% 89.8%
10061.54089.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1431 0.0413 250.7
0.14310.0413250.7LCH
Lightness
Chroma
Hue
OKLAB
0.1431 -0.01 -0.04
0.1431-0.01-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons