Fun Blue

#155B9F

General Information about #155B9F

The hexadecimal color #155B9F, often referred to as "Fun Blue," is a deep, saturated shade of blue. In the RGB color model, it is composed of 8.24% red, 35.69% green, and 62.35% blue. In the CMYK color model, it consists of 87% cyan, 43% magenta, 0% yellow, and 38% black. This color evokes feelings of calmness, trustworthiness, and professionalism, making it a popular choice for various applications, especially in corporate branding and web design. Understanding its composition helps designers effectively incorporate it into their projects, ensuring it aligns with the desired aesthetic and emotional impact. Its versatility allows it to be used as both a primary and accent color, depending on the context.

The hex color #155B9F, also known as Fun Blue, presents some accessibility challenges. With a relatively low luminance, it may not provide sufficient contrast against light backgrounds, potentially causing readability issues for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #155B9F for text or important UI elements, it's crucial to pair it with a very light color like white or a pale yellow to ensure compliance. Tools like contrast checkers can help assess the contrast ratio. Alternatively, consider using #155B9F for decorative elements where readability isn't critical or adjusting the color slightly to improve its contrast.

Shades

Digital Color Formats

RGB
21 91 159
RGB21 91 159
Red
Green
Blue
HSL
209.57deg 76.67% 35.29%
209.5776.6735.29HSL
Hue
Saturation
Lightness
HWB
209.57deg 8.24% 37.65%
209.578.2437.65HWB
Hue
Whiteness
Blackness
hex#155B9F
rgb21 91 159
hsl209.57deg 76.67% 35.29%
cmyk86.79% 42.77% 0% 37.65%
hwb209.57deg 8.24% 37.65%
xyz-d650.1 0.1 0.34
oklch0.4673 0.1284 252.41
oklab0.4673 -0.04 -0.12
CMYK
86.79% 42.77% 0% 37.65%
86.7942.77037.65CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.1 0.1 0.34
0.10.10.34XYZ
X
Y
Z
OKLCH
0.4673 0.1284 252.41
0.46730.1284252.41LCH
Lightness
Chroma
Hue
OKLAB
0.4673 -0.04 -0.12
0.4673-0.04-0.12LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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