Blue Charcoal

#03131A

General Information about #03131A

The hexadecimal color code #03131A, also known as Blue Charcoal, represents a very dark shade of blue-gray. It's composed of 1.18% red, 7.45% green, and 10.2% blue. In the RGB color model, it's defined as rgb(3, 19, 26). This color is often associated with feelings of calmness, sophistication, and depth. It's commonly used in designs where a subtle and understated aesthetic is desired. The color is rarely found in nature in its pure form, it mostly appears mixed with other elements and colors. It is a color of low saturation, and appears near black. The hue has low brightness.

The color #03131A, also known as Blue Charcoal, presents significant accessibility challenges due to its very dark nature. Its low luminance results in poor contrast when used as text against a white background, failing WCAG (Web Content Accessibility Guidelines) standards for readability. To improve accessibility, it's crucial to pair this color with much lighter shades for text or interactive elements. Consider using it sparingly for purely decorative purposes or backgrounds where readability is not paramount. Implementing a color contrast checker is highly recommended to ensure sufficient contrast ratios are met, aiming for at least 4.5:1 for normal text and 3:1 for large text. If used in interactive elements like buttons, ensure sufficient visual cues beyond color alone are present, such as text labels or icons, to aid users with color vision deficiencies. When used as a background, the foreground should be significantly lighter to provide enough contrast to users.

Shades

Digital Color Formats

RGB
3 19 26
RGB3 19 26
Red
Green
Blue
HSL
198.26 79.31% 5.69%
198.2679.315.69HSL
Hue
Saturation
Lightness
HWB
198.26 1.18% 89.8%
198.261.1889.8HWB
Hue
Whiteness
Blackness
hex#03131A
rgb3 19 26
hsl198.26 79.31% 5.69%
cmyk88.46% 26.92% 0% 89.8%
hwb198.26 1.18% 89.8%
xyz-d650 0.01 0.01
oklch0.1757 0.0277 226.87
oklab0.1757 -0.02 -0.02
CMYK
88.46% 26.92% 0% 89.8%
88.4626.92089.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0.01 0.01
00.010.01XYZ
X
Y
Z
OKLCH
0.1757 0.0277 226.87
0.17570.0277226.87LCH
Lightness
Chroma
Hue
OKLAB
0.1757 -0.02 -0.02
0.1757-0.02-0.02LAB
Lightness
Green–Red
Blue–Yellow

Alternative colors

Applications

Complementary color

Buttons