Black Russian

#00021B

General Information

The hex color #00021B, often referred to as 'Black Russian', is a very dark shade of blue, almost imperceptible to the naked eye as anything other than black. It belongs to the family of blue colors, albeit deeply saturated. Its primary components are a negligible amount of red and green, with a slightly higher proportion of blue, resulting in its subtle blue undertone. This hex code is rarely used in design due to its extremely low luminance, which poses significant accessibility challenges. Colors like this are typically reserved for specialized applications where an almost-black color with a hint of blue is required. In RGB color space, it consists of 0 red, 2 green, and 27 blue. In the CMYK color model, it translates to very high percentages of cyan, magenta, and yellow, and a substantial amount of black.

The hex color #00021B presents significant accessibility challenges due to its extremely low luminance. It falls far short of recommended contrast ratios for text and background combinations, making it difficult for individuals with visual impairments to discern content. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. This color fails to meet even the most lenient contrast requirements when paired with standard light or dark backgrounds. Therefore, it's crucial to avoid using #00021B for text or interactive elements without careful consideration. To improve accessibility, pair it with a very light color that significantly increases contrast, or use it sparingly for decorative elements where legibility is not critical. Always test color combinations with accessibility evaluation tools to ensure compliance with accessibility standards and provide an inclusive user experience.

Shades

Digital Color Formats

RGB
0 2 27
RGB0 2 27
Red
Green
Blue
HSL
235.56deg 100% 5.29%
235.561005.29HSL
Hue
Saturation
Lightness
HWB
235.56deg 0% 89.41%
235.56089.41HWB
Hue
Whiteness
Blackness
hex#00021B
rgb0 2 27
hsl235.56deg 100% 5.29%
cmyk100% 92.59% 0% 89.41%
hwb235.56deg 0% 89.41%
xyz-d650 0 0.01
oklch0.1121 0.0618 263.75
oklab0.1121 -0.01 -0.06
CMYK
100% 92.59% 0% 89.41%
10092.59089.41CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1121 0.0618 263.75
0.11210.0618263.75LCH
Lightness
Chroma
Hue
OKLAB
0.1121 -0.01 -0.06
0.1121-0.01-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons