Swamp

#00191B

General Information about #00191B

The hexadecimal color code #00191B, often referred to as "Swamp," is a very dark shade of cyan. It is composed of 0% red, 9.8% green, and 10.6% blue. In the RGB color model, #00191B consists of 0 red, 25 green, and 27 blue. When represented in CMYK (cyan, magenta, yellow, key/black), its approximate values are 100% cyan, 7.4% magenta, 0% yellow, and 89.4% black. This indicates that the color is primarily composed of cyan with a significant amount of black to achieve its deep, dark hue. The low saturation and luminance values contribute to its muted and subtle appearance, making it suitable for applications where a dark, understated color is desired. The color is not part of the web-safe color palette and may render differently across various displays and browsers, although the difference should be subtle due to the color's nature.

The color #00191B, also known as Swamp, presents significant accessibility challenges, particularly concerning color contrast. When used as text against a white or light-colored background, the extremely low luminance difference can render the text virtually illegible for users with normal vision. For individuals with visual impairments, such as low vision or color blindness, the difficulty is compounded, making the content inaccessible. Therefore, it is crucial to avoid using #00191B as a text color on light backgrounds. When utilizing it for background elements, ensure sufficient contrast with foreground elements. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text to comply with WCAG (Web Content Accessibility Guidelines) standards. Consider pairing it with lighter, contrasting colors to improve readability and overall accessibility. Tools like contrast checkers can help determine if the color combination meets accessibility requirements. Proper attention to color contrast ensures that web content is inclusive and usable for all users, regardless of their visual abilities.

Shades

Digital Color Formats

RGB
0 25 27
RGB0 25 27
Red
Green
Blue
HSL
184.44deg 100% 5.29%
184.441005.29HSL
Hue
Saturation
Lightness
HWB
184.44deg 0% 89.41%
184.44089.41HWB
Hue
Whiteness
Blackness
hex#00191B
rgb0 25 27
hsl184.44deg 100% 5.29%
cmyk100% 7.41% 0% 89.41%
hwb184.44deg 0% 89.41%
xyz-d650.01 0.01 0.01
oklch0.1943 0.0331 201.85
oklab0.1943 -0.03 -0.01
CMYK
100% 7.41% 0% 89.41%
1007.41089.41CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.1943 0.0331 201.85
0.19430.0331201.85LCH
Lightness
Chroma
Hue
OKLAB
0.1943 -0.03 -0.01
0.1943-0.03-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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