Blue Charcoal

#050815

General Information About Blue Charcoal

The hex color #050815, also known as Blue Charcoal, is a very dark shade of blue-gray. It's composed of 2% red, 3.1% green, and 8.2% blue. In the RGB color space, it has values of R:5, G:8, and B:15. Blue Charcoal falls into the category of very dark colors and is often perceived as a sophisticated and understated hue. Its darkness lends it a sense of depth and seriousness, making it suitable for applications where a subtle and refined aesthetic is desired. The color is more blue-leaning than black, which means it can add a cold and strong vibe to designs. This color can act as a solid neutral while still offering more depth than standard grays.

The hex color #050815, also known as Blue Charcoal, presents significant accessibility challenges. Its extremely low luminance value of approximately 0.004 makes it difficult to perceive against most backgrounds. According to WCAG (Web Content Accessibility Guidelines) standards, this color fails almost all contrast ratio tests when paired with standard text colors like white or even light grays. For text to be legible, it would require an exceptionally light foreground color, which might still strain the user's eyes due to the extreme contrast. Designers should avoid using #050815 for primary text or interactive elements. If it must be used, ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular) with its background. Consider using color contrast tools to verify compliance and test with users who have visual impairments.

Shades

Digital Color Formats

RGB
5 8 21
RGB5 8 21
Red
Green
Blue
HSL
228.75deg 61.54% 5.1%
228.7561.545.1HSL
Hue
Saturation
Lightness
HWB
228.75deg 1.96% 91.76%
228.751.9691.76HWB
Hue
Whiteness
Blackness
hex#050815
rgb5 8 21
hsl228.75deg 61.54% 5.1%
cmyk76.19% 61.9% 0% 91.76%
hwb228.75deg 1.96% 91.76%
xyz-d650 0 0.01
oklch0.1387 0.0296 269.78
oklab0.1387 0 -0.03
CMYK
76.19% 61.9% 0% 91.76%
76.1961.9091.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1387 0.0296 269.78
0.13870.0296269.78LCH
Lightness
Chroma
Hue
OKLAB
0.1387 0 -0.03
0.13870-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons