Cobalt

#0151B3

General Information about Cobalt (#0151B3)

The hexadecimal color #0151B3, also known as Cobalt, is a deep, saturated shade of blue. It belongs to the blue color family and is often associated with feelings of trust, stability, and intelligence. In the RGB color model, #0151B3 is composed of 0.4% red, 31.8% green, and 70.2% blue. This specific combination creates a color that is both striking and calming. Cobalt blue has a rich history, dating back to its use in pigments for paintings and dyes. Today, it is widely used in various applications, including web design, graphic design, fashion, and interior decoration. Its versatility stems from its ability to evoke different emotions and moods depending on the context. From a technical perspective, understanding the RGB values and hexadecimal representation of Cobalt blue is crucial for designers and developers to accurately reproduce the color across different media.

The hex color #0151B3, also known as Cobalt, presents some accessibility challenges, particularly for users with visual impairments. Its low lightness value (close to black) means that text rendered in this color may not have sufficient contrast against a white or light-colored background, making it difficult to read. To ensure accessibility, it's crucial to pair this color with very light shades for text or interface elements. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text (14pt bold or 18pt regular) to comply with WCAG guidelines. Tools such as contrast checkers can help verify compliance. When using this color for decorative purposes, such as backgrounds or non-text elements, consider its impact on users with cognitive disabilities and ensure that it does not interfere with the overall usability of the design. Providing alternative themes or color options can also enhance accessibility for a wider range of users.

Shades

Digital Color Formats

RGB
1 81 179
RGB1 81 179
Red
Green
Blue
HSL
213.03deg 98.89% 35.29%
213.0398.8935.29HSL
Hue
Saturation
Lightness
HWB
213.03deg 0.39% 29.8%
213.030.3929.8HWB
Hue
Whiteness
Blackness
hex#0151B3
rgb1 81 179
hsl213.03deg 98.89% 35.29%
cmyk99.44% 54.75% 0% 29.8%
hwb213.03deg 0.39% 29.8%
xyz-d650.11 0.09 0.44
oklch0.4567 0.1701 258.25
oklab0.4567 -0.03 -0.17
CMYK
99.44% 54.75% 0% 29.8%
99.4454.75029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.09 0.44
0.110.090.44XYZ
X
Y
Z
OKLCH
0.4567 0.1701 258.25
0.45670.1701258.25LCH
Lightness
Chroma
Hue
OKLAB
0.4567 -0.03 -0.17
0.4567-0.03-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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