Dark Blue

#1803B1

General Information

The hexadecimal color #1803B1, often described as a dark blue, is composed of 9.41% red, 1.18% green, and 69.41% blue. In the RGB color model, it represents a deep shade of blue, leaning towards indigo. This color is frequently associated with qualities such as trust, stability, and intelligence. In color psychology, dark blue can evoke feelings of calmness and security. Its usage is prevalent in corporate branding, web design, and various visual communication mediums where a sense of reliability and professionalism is desired. Its dark nature also means it has a relatively low luminance, impacting its usability in contexts requiring high contrast for accessibility purposes. Understanding its composition and psychological associations is crucial for its effective implementation in design projects.

The color #1803B1, a deep, dark blue, presents several accessibility considerations for web developers. Primarily, its low luminance value means it requires careful contrast management to ensure readability. When used as text, it necessitates a light background color to meet WCAG (Web Content Accessibility Guidelines) standards for contrast ratio. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Conversely, using #1803B1 as a background color demands light-colored text. Developers should use tools to verify contrast ratios. Furthermore, avoid relying solely on color to convey information; supplement color with text labels or icons to accommodate users with color vision deficiencies. Thoughtful consideration of these factors ensures an inclusive and accessible user experience.

Shades

Digital Color Formats

RGB
24 3 177
RGB24 3 177
Red
Green
Blue
HSL
247.24 96.67% 35.29%
247.2496.6735.29HSL
Hue
Saturation
Lightness
HWB
247.24 1.18% 30.59%
247.241.1830.59HWB
Hue
Whiteness
Blackness
hex#1803B1
rgb24 3 177
hsl247.24 96.67% 35.29%
cmyk86.44% 98.31% 0% 30.59%
hwb247.24 1.18% 30.59%
xyz8.35 3.43 41.82
CMYK
86.44% 98.31% 0% 30.59%
86.4498.31030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.35 3.43 41.82
8.353.4341.82XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025