Cello

#223F63

General Information

The hex color code #223F63, also referred to as Cello, signifies a dark, muted shade of blue with a hint of purple. It belongs to the blue color family, which is associated with feelings of calmness, stability, and intelligence. In the RGB (Red, Green, Blue) color model, it is composed of 13.33% red, 24.71% green, and 38.82% blue. This color is more inclined towards the cooler end of the spectrum. The Cello color can be found in a range of applications, from web design and user interfaces to interior decor and fashion, particularly where a sense of sophistication or reliability is desired. Because of its high blue proportion, it is generally perceived as a peaceful and serious color.

The hex color #223F63, also known as Cello, presents some accessibility challenges, particularly for users with visual impairments. Its relatively low luminance value means that text rendered in this color against a white background may not meet WCAG (Web Content Accessibility Guidelines) AA standards for contrast ratio. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #223F63 for text, it's crucial to pair it with a light background color to ensure readability. Alternatively, consider using it for decorative elements or backgrounds where text is not essential. Tools like contrast checkers can help determine if the combination meets accessibility requirements. Also, avoid using this color to indicate status or convey critical information alone, without additional visual cues, as those who are color blind may not be able to distinguish it.

Shades

Digital Color Formats

RGB
34 63 99
RGB34 63 99
Red
Green
Blue
HSL
213.23deg 48.87% 26.08%
213.2348.8726.08HSL
Hue
Saturation
Lightness
HWB
213.23deg 13.33% 61.18%
213.2313.3361.18HWB
Hue
Whiteness
Blackness
hex#223F63
rgb34 63 99
hsl213.23deg 48.87% 26.08%
cmyk65.66% 36.36% 0% 61.18%
hwb213.23deg 13.33% 61.18%
xyz-d650.05 0.05 0.12
oklch0.3635 0.0719 254.76
oklab0.3635 -0.02 -0.07
CMYK
65.66% 36.36% 0% 61.18%
65.6636.36061.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.05 0.12
0.050.050.12XYZ
X
Y
Z
OKLCH
0.3635 0.0719 254.76
0.36350.0719254.76LCH
Lightness
Chroma
Hue
OKLAB
0.3635 -0.02 -0.07
0.3635-0.02-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons