Cello

#1F3A61

General Information about Cello (#1F3A61)

The hexadecimal color #1F3A61, also known as Cello, is a dark, muted shade of blue. In the RGB color model, it consists of 12.2% red, 22.7% green, and 38% blue. This color is often associated with sophistication, depth, and tranquility. Its cool undertones make it suitable for creating a calming and professional atmosphere. In color theory, it can be considered a tertiary color, lying between blue and indigo. The name 'Cello' suggests a connection to the rich, resonant tones of the musical instrument, hinting at the color's depth and complexity. Its relative darkness makes it suitable for use as a background color, especially when paired with light-colored text or graphics, but attention must be paid to ensure it complies with accessibility guidelines.

The hex color #1F3A61, also known as Cello, presents some accessibility considerations for web design. Its relatively low luminance value means that it requires careful pairing with text and other interactive elements to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #1F3A61 as a background, it's crucial to use light colored text like white or a very light shade of yellow to meet these contrast requirements, thus making content readable for users with visual impairments. Furthermore, avoid using this color for crucial UI elements without sufficient contrast, as it can hinder usability for all users, not just those with disabilities. Testing the contrast ratio using online tools is highly advisable.

Shades

Digital Color Formats

RGB
31 58 97
RGB31 58 97
Red
Green
Blue
HSL
215.45deg 51.56% 25.1%
215.4551.5625.1HSL
Hue
Saturation
Lightness
HWB
215.45deg 12.16% 61.96%
215.4512.1661.96HWB
Hue
Whiteness
Blackness
hex#1F3A61
rgb31 58 97
hsl215.45deg 51.56% 25.1%
cmyk68.04% 40.21% 0% 61.96%
hwb215.45deg 12.16% 61.96%
xyz-d650.04 0.04 0.12
oklch0.348 0.0762 257.68
oklab0.348 -0.02 -0.07
CMYK
68.04% 40.21% 0% 61.96%
68.0440.21061.96CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.04 0.04 0.12
0.040.040.12XYZ
X
Y
Z
OKLCH
0.348 0.0762 257.68
0.3480.0762257.68LCH
Lightness
Chroma
Hue
OKLAB
0.348 -0.02 -0.07
0.348-0.02-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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