Firefly

#152535

General Information about #152535

The hex color #152535, also known as Firefly, is a dark, muted shade of blue. In the RGB color model, it is composed of 8.24% red, 14.51% green, and 20.78% blue. In the CMYK color model, it consists of 60.4% cyan, 30.1% magenta, 0% yellow, and 79.2% black. This color is often associated with feelings of calmness, sophistication, and depth. It is a versatile color that can be used in a variety of design applications, from web design to interior design, particularly in situations where a subtle, dark color is desired. Firefly evokes the mysterious, flickering light of fireflies in the darkness, and represents a subtle, intriguing atmosphere. The color's hex code can be used to ensure color accuracy across different digital platforms and mediums.

The hex color #152535, also known as Firefly, presents considerable accessibility challenges, particularly in text-based applications. Its low luminance value (very dark) means that it requires a very light foreground color to achieve sufficient contrast for readability, typically a white or very pale yellow. According to WCAG (Web Content Accessibility Guidelines) standards, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text to be considered accessible. Using #152535 as a background for text necessitates careful selection of a contrasting color to meet these ratios. For graphical elements and user interface components, a contrast ratio of 3:1 is required against adjacent colors. When using Firefly it is important to check your contrast ratios using online tools. The dark nature of the color also may affect users with visual impairments, making it harder for them to perceive design elements.

Shades

Digital Color Formats

RGB
21 37 53
RGB21 37 53
Red
Green
Blue
HSL
210 43.24% 14.51%
21043.2414.51HSL
Hue
Saturation
Lightness
HWB
210 8.24% 79.22%
2108.2479.22HWB
Hue
Whiteness
Blackness
hex#152535
rgb21 37 53
hsl210 43.24% 14.51%
cmyk60.38% 30.19% 0% 79.22%
hwb210 8.24% 79.22%
xyz1.61 1.74 3.62
CMYK
60.38% 30.19% 0% 79.22%
60.3830.19079.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
1.61 1.74 3.62
1.611.743.62XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025