Blue Gem

Q: How do I use #151188 in CSS?

You can use #151188 in CSS with: background-color: #151188; or color: #151188; or as an RGB value: rgb(21, 17, 136). For print design, use CMYK: 85%, 88%, 0%, 47%.

#151188

Blue Gem is a cool dark color with the hex code #151188. This vibrant hue can be represented as RGB 21, 17, 136 in digital design or CMYK 85%, 88%, 0%, 47% for print applications. Find matching Pantone color.

Blue Gem color values

HEX: #151188
RGB: 21, 17, 136
HSL: 242°, 78%, 30%
CMYK: 85, 88, 0, 47

Shades & tints

Darker Lighter

About this color

Blue Gem sits at 242° on the color wheel with 78% saturation and 30% lightness, placing it in the blue segment of the spectrum. At 78% saturation, the hue is fully legible and confident — richly chromatic without tipping into high-contrast territory. The lower lightness gives it weight and depth, lending gravity to any palette it enters.

In digital environments, Blue Gem is rendered as rgb(21, 17, 136), where the blue channel is highest at 136, producing a strongly blue character. High saturation combined with low lightness creates deep, jewel-toned results — useful for premium UI elements, hover states, and focused interaction areas.

For print, Blue Gem translates to a CMYK breakdown of 85C 88M 0Y 47K. With a moderate key (47%), this color uses black to deepen the chromatic channels rather than replace them, a profile that typically holds up well in both offset and digital print. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

Color harmonies

Complementary

Analogous

Triadic

Split-Complementary

How to use Blue Gem

CSS Variable

:root {
  --brand-primary: #151188;
  --brand-primary-rgb: 21, 17, 136;
}

Define as a CSS custom property for consistent theming across your site.

Tailwind Config

colors: {
  brand: '#151188',
}

Add to your Tailwind config to use classes like bg-brand.

Print Design (CMYK)

C: 85%
M: 88%
Y: 0%
K: 47%

Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.

RGB for Screens

rgb(21, 17, 136)
rgba(21, 17, 136, 0.8)

Use RGB notation for compatibility or add alpha channel for transparency.

Brands using similar hue

24 brand s with colors near 242° on the color wheel

Frequently asked questions

What color is #151188?

#151188 is Blue Gem, a cool dark color with RGB values of 21, 17, 136. It has a hue of 242°, 78% saturation, and 30% lightness in the HSL color space.

What is the RGB value of #151188?

The RGB color code for #151188 is rgb(21, 17, 136). This means it contains 21 red, 17 green, and 136 blue in the RGB color model.

Is Blue Gem a warm or cool color?

Blue Gem (#151188) is a cool color with a hue between 120-300° on the color wheel.

How do I use #151188 in CSS?

You can use #151188 in CSS with: background-color: #151188; or color: #151188; or as an RGB value: rgb(21, 17, 136). For print design, use CMYK: 85%, 88%, 0%, 47%.