Cello

#283A53

General Information about #283A53 (Cello)

The hexadecimal color code #283A53, also known as Cello, is a dark, muted shade of blue-gray. It is composed of 15.7% red, 22.7% green, and 32.5% blue. In the RGB color model, #283A53 has the numerical representation (40, 58, 83). This color falls within the cool color spectrum, evoking feelings of calmness, stability, and sophistication. In terms of its spectral properties, Cello absorbs most wavelengths except for those corresponding to its perceived color, reflecting primarily blue and some green light. Colors similar to Cello include charcoal gray, deep slate blue, and other dark, muted blues. This color is commonly found in professional settings, digital interfaces, and designs aiming for a sense of understated elegance. Its use is often favored in contexts where a calming and trustworthy impression is desired.

The color #283A53, also known as Cello, presents some accessibility challenges, especially in text applications. Its relatively low lightness value (around 21%) means that it requires careful consideration of contrast ratios. When used as a text color, it's crucial to ensure sufficient contrast against the background to meet WCAG (Web Content Accessibility Guidelines) standards. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. For backgrounds, lighter shades of yellow, orange, or even light grays might be suitable to provide the necessary contrast. Avoid pairing it with dark backgrounds, as this will make the text difficult to read for users, especially those with visual impairments. When using #283A53 for interactive elements like buttons or links, ensure sufficient visual cues beyond color alone are available to cater to users with color blindness. Providing clear hover states or underlines can significantly improve usability. For decorative elements, accessibility concerns are reduced, but maintaining overall visual harmony remains important.

Shades

Digital Color Formats

RGB
40 58 83
RGB40 58 83
Red
Green
Blue
HSL
214.88deg 34.96% 24.12%
214.8834.9624.12HSL
Hue
Saturation
Lightness
HWB
214.88deg 15.69% 67.45%
214.8815.6967.45HWB
Hue
Whiteness
Blackness
hex#283A53
rgb40 58 83
hsl214.88deg 34.96% 24.12%
cmyk51.81% 30.12% 0% 67.45%
hwb214.88deg 15.69% 67.45%
xyz-d650.04 0.04 0.09
oklch0.3449 0.05 256.75
oklab0.3449 -0.01 -0.05
CMYK
51.81% 30.12% 0% 67.45%
51.8130.12067.45CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.04 0.04 0.09
0.040.040.09XYZ
X
Y
Z
OKLCH
0.3449 0.05 256.75
0.34490.05256.75LCH
Lightness
Chroma
Hue
OKLAB
0.3449 -0.01 -0.05
0.3449-0.01-0.05LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons