Chathams Blue

#1B487F

General Information about #1B487F

The hexadecimal color #1B487F, also known as Chathams Blue, is a deep, muted shade of blue that evokes feelings of serenity, stability, and sophistication. It belongs to the blue color family and is often associated with trust, reliability, and professionalism. In the RGB color model, it is composed of 10.59% red, 28.24% green, and 49.8% blue. In the CMYK color model, it is composed of 78.75% cyan, 43.23% magenta, 0% yellow, and 50.2% black. This color is frequently used in corporate branding, web design, and interior decoration to create a sense of calm and trustworthiness. Its relatively low saturation makes it a versatile choice that pairs well with both neutral and vibrant colors.

The color #1B487F, also known as Chathams Blue, presents moderate accessibility challenges. Its relatively dark hue necessitates careful consideration of contrast ratios when used for text or interactive elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text against its background to ensure readability for users with visual impairments. When using #1B487F as a background, lighter text colors like white or light gray are preferable to meet these standards. Similarly, if it's used as a text color, a very light background is crucial. Proper color contrast assessment tools should be utilized to verify compliance, ensuring the content is accessible to a wide range of users, including those with low vision or color blindness. Employing sufficient spacing and clear typography can further improve readability and overall accessibility.

Shades

Digital Color Formats

RGB
27 72 127
RGB27 72 127
Red
Green
Blue
HSL
213deg 64.94% 30.2%
21364.9430.2HSL
Hue
Saturation
Lightness
HWB
213deg 10.59% 50.2%
21310.5950.2HWB
Hue
Whiteness
Blackness
hex#1B487F
rgb27 72 127
hsl213deg 64.94% 30.2%
cmyk78.74% 43.31% 0% 50.2%
hwb213deg 10.59% 50.2%
xyz-d650.07 0.06 0.21
oklch0.4013 0.105 255.33
oklab0.4013 -0.03 -0.1
CMYK
78.74% 43.31% 0% 50.2%
78.7443.31050.2CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.06 0.21
0.070.060.21XYZ
X
Y
Z
OKLCH
0.4013 0.105 255.33
0.40130.105255.33LCH
Lightness
Chroma
Hue
OKLAB
0.4013 -0.03 -0.1
0.4013-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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