Chathams Blue

#1B4D7D

About Chathams Blue (#1B4D7D)

The hexadecimal color code #1B4D7D represents a specific shade of blue known as Chathams Blue. It is composed of 10.6% red, 30.2% green, and 49% blue. In the RGB color model, this translates to 27 red, 77 green, and 125 blue. The color is often associated with qualities like stability, trust, and professionalism. In color theory, Chathams Blue falls into the cool color spectrum, which can evoke feelings of calmness and serenity. Its relatively low saturation gives it a muted appearance, making it a versatile choice for various applications. The color is commonly used in corporate branding, web design, and interior decoration to convey a sense of reliability and sophistication.

The hex color #1b4d7d, also known as Chathams Blue, presents specific accessibility considerations for web development. When used as a background color, it's crucial to ensure sufficient contrast with the foreground text or elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. This color may require a light text color (e.g., white or a very pale shade) to meet these standards. Tools like contrast checkers can help verify compliance. Furthermore, avoid using this color as the sole indicator of interactive elements like links or buttons; provide additional cues such as underlines or borders to ensure usability for users with color vision deficiencies. Semantic HTML and ARIA attributes can further enhance accessibility.

Shades

Digital Color Formats

RGB
27 77 125
RGB27 77 125
Red
Green
Blue
HSL
209.39deg 64.47% 29.8%
209.3964.4729.8HSL
Hue
Saturation
Lightness
HWB
209.39deg 10.59% 50.98%
209.3910.5950.98HWB
Hue
Whiteness
Blackness
hex#1B4D7D
rgb27 77 125
hsl209.39deg 64.47% 29.8%
cmyk78.4% 38.4% 0% 50.98%
hwb209.39deg 10.59% 50.98%
xyz-d650.07 0.07 0.2
oklch0.4123 0.0964 250.67
oklab0.4123 -0.03 -0.09
CMYK
78.4% 38.4% 0% 50.98%
78.438.4050.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.4123 0.0964 250.67
0.41230.0964250.67LCH
Lightness
Chroma
Hue
OKLAB
0.4123 -0.03 -0.09
0.4123-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons