Dark Blue

#280DD9

General Information about #280DD9

The hex color #280DD9 represents a shade of dark blue in the RGB color space. It is composed of 15.7% red, 5.1% green, and 85.1% blue. In terms of color theory, it evokes feelings of stability, trust, and depth. Dark blue hues are often associated with professionalism, knowledge, and serenity. This particular shade leans towards a more intense and somewhat mysterious tone. It's crucial to understand the color's context and intended emotional impact when using it in design or art. The complementary color of #280DD9 is #D9B20D (a shade of yellow), according to color wheel calculations. Colors such as #280DD9 are often used in corporate environments, and will give a sense of trust and seriousness to designs.

The hex color #280DD9, a dark blue, presents accessibility challenges, especially when used as a background color. Its low luminance contrast ratio against white text (or other light colors) makes it difficult for users with visual impairments to read the content. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using #280DD9 requires careful consideration of foreground text colors. Light shades of yellow, orange, or white would be more appropriate to ensure sufficient contrast. Testing with accessibility evaluation tools is essential to validate compliance. Avoid using #280DD9 for crucial interface elements where readability is paramount. Providing alternative high-contrast themes or allowing users to customize color schemes are also good practices.

Shades

Digital Color Formats

RGB
40 13 217
RGB40 13 217
Red
Green
Blue
HSL
247.94deg 88.7% 45.1%
247.9488.745.1HSL
Hue
Saturation
Lightness
HWB
247.94deg 5.1% 14.9%
247.945.114.9HWB
Hue
Whiteness
Blackness
hex#280DD9
rgb40 13 217
hsl247.94deg 88.7% 45.1%
cmyk81.57% 94.01% 0% 14.9%
hwb247.94deg 5.1% 14.9%
xyz-d650.14 0.06 0.66
oklch0.4171 0.2662 270.13
oklab0.4171 0 -0.27
CMYK
81.57% 94.01% 0% 14.9%
81.5794.01014.9CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.06 0.66
0.140.060.66XYZ
X
Y
Z
OKLCH
0.4171 0.2662 270.13
0.41710.2662270.13LCH
Lightness
Chroma
Hue
OKLAB
0.4171 0 -0.27
0.41710-0.27LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons