Blue Charcoal

#030915

General Information

The hex color #030915, also known as Blue Charcoal, is a very dark shade of blue. It's composed of 1.18% red, 3.53% green, and 8.24% blue. In the RGB color space, it is very close to black. The color is often associated with feelings of depth, mystery, and sophistication. In terms of color theory, blue charcoal falls under the cool color category, making it a versatile choice for creating a calming or contemplative atmosphere. It is a popular choice for backgrounds and accents in graphic design, web design, and interior decoration. However, designers must use lighter colors to contrast and make the content readable. Because of its depth, it can also be associated with wealth.

The color #030915, also known as Blue Charcoal, presents significant accessibility challenges due to its low luminance. Its dark nature results in a very low contrast ratio against standard white backgrounds, making it difficult for users with visual impairments to perceive text or graphical elements rendered in this color. To ensure inclusivity, especially for users with low vision or color blindness, it is crucial to pair this color with much lighter hues. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for larger text (14pt bold or 18pt regular) to meet WCAG (Web Content Accessibility Guidelines) AA standards. Furthermore, avoid using this color alone to convey important information; supplement it with labels, icons, or other visual cues to ensure that the content remains accessible to all users. Careful consideration during the design phase is necessary to mitigate potential accessibility barriers associated with this dark shade.

Shades

Digital Color Formats

RGB
3 9 21
RGB3 9 21
Red
Green
Blue
HSL
220deg 75% 4.71%
220754.71HSL
Hue
Saturation
Lightness
HWB
220deg 1.18% 91.76%
2201.1891.76HWB
Hue
Whiteness
Blackness
hex#030915
rgb3 9 21
hsl220deg 75% 4.71%
cmyk85.71% 57.14% 0% 91.76%
hwb220deg 1.18% 91.76%
xyz-d650 0 0.01
oklch0.1394 0.0297 257.41
oklab0.1394 -0.01 -0.03
CMYK
85.71% 57.14% 0% 91.76%
85.7157.14091.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1394 0.0297 257.41
0.13940.0297257.41LCH
Lightness
Chroma
Hue
OKLAB
0.1394 -0.01 -0.03
0.1394-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons