Firefly

#0A2839

General Information about #0A2839

The hexadecimal color code #0A2839, also known as Firefly, represents a dark, muted shade of blue-green. It's composed of 3.92% red, 15.69% green, and 22.35% blue. In the RGB color model, it has values of R:10, G:40, B:57. In the CMYK color model, its composition is 82% cyan, 30% magenta, 0% yellow, and 78% black. This color is often associated with calmness, depth, and sophistication. Due to its low lightness value, it is generally used as a background color or for elements that need to recede visually. It is crucial to consider accessibility when using this color, as it requires light text or elements to ensure adequate contrast for readability.

The color #0A2839, also known as Firefly, presents some accessibility challenges, especially when used as a background or text color. Its low lightness value (approximately 9%) means that text rendered in this color requires very light foreground colors to achieve sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #0A2839, careful consideration must be given to the choice of foreground color to ensure compliance and provide an accessible experience for users with visual impairments. Tools like contrast checkers can be valuable in verifying compliance. Additionally, avoid using this color for important interactive elements without proper contrast, as this could make the website unusable for many individuals. Ensure that non-text elements also meet the contrast requirements.

Shades

Digital Color Formats

RGB
10 40 57
RGB10 40 57
Red
Green
Blue
HSL
201.7deg 70.15% 13.14%
201.770.1513.14HSL
Hue
Saturation
Lightness
HWB
201.7deg 3.92% 77.65%
201.73.9277.65HWB
Hue
Whiteness
Blackness
hex#0A2839
rgb10 40 57
hsl201.7deg 70.15% 13.14%
cmyk82.46% 29.82% 0% 77.65%
hwb201.7deg 3.92% 77.65%
xyz-d650.02 0.02 0.04
oklch0.2638 0.0473 237.46
oklab0.2638 -0.03 -0.04
CMYK
82.46% 29.82% 0% 77.65%
82.4629.82077.65CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.02 0.02 0.04
0.020.020.04XYZ
X
Y
Z
OKLCH
0.2638 0.0473 237.46
0.26380.0473237.46LCH
Lightness
Chroma
Hue
OKLAB
0.2638 -0.03 -0.04
0.2638-0.03-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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