Congress Blue

#004699

General Information about Congress Blue

The hex color #004699, also known as Congress Blue, is a deep and saturated shade of blue. In the RGB color model, it is composed of 0% red, 27.5% green, and 60% blue. This color is often associated with concepts like trust, stability, and authority. In branding, it's frequently used by organizations aiming to project a professional and reliable image. Historically, blue dyes were derived from natural sources like indigo, making blue pigments relatively expensive and thus associated with prestige. The color's cool undertones make it versatile for various applications, ranging from digital interfaces to physical products, maintaining a consistent visual message.

The hex color #004699, also known as Congress Blue, presents certain accessibility considerations, particularly for web design. Its relatively low lightness value means it requires careful attention to contrast ratios when used for text or interactive elements. According to WCAG guidelines, sufficient contrast between text and background is crucial for users with visual impairments. For small text, a contrast ratio of at least 4.5:1 is recommended, while large text requires a ratio of 3:1. When using #004699, lighter colors such as white, light yellow, or light gray are preferable for text to ensure readability. Tools like contrast checkers can help verify compliance. Additionally, avoid using color as the sole means of conveying information; always provide alternative cues like text labels or icons.

Shades

Digital Color Formats

RGB
0 70 153
RGB0 70 153
Red
Green
Blue
HSL
212.55deg 100% 30%
212.5510030HSL
Hue
Saturation
Lightness
HWB
212.55deg 0% 40%
212.55040HWB
Hue
Whiteness
Blackness
hex#004699
rgb0 70 153
hsl212.55deg 100% 30%
cmyk100% 54.25% 0% 40%
hwb212.55deg 0% 40%
xyz-d650.08 0.07 0.31
oklch0.4107 0.1493 257.58
oklab0.4107 -0.03 -0.15
CMYK
100% 54.25% 0% 40%
10054.25040CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.07 0.31
0.080.070.31XYZ
X
Y
Z
OKLCH
0.4107 0.1493 257.58
0.41070.1493257.58LCH
Lightness
Chroma
Hue
OKLAB
0.4107 -0.03 -0.15
0.4107-0.03-0.15LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons