Mirage

Q: How do I use #121C2D in CSS?

You can use #121C2D in CSS with: background-color: #121C2D; or color: #121C2D; or as an RGB value: rgb(18, 28, 45). For print design, use CMYK: 60%, 38%, 0%, 82%.

#121C2D aka “Big Stone” by Twilio

Mirage is a cool dark color with the hex code #121C2D. Also known as "Big Stone" by Twilio . This moderately saturated hue can be represented as RGB 18, 28, 45 in digital design or CMYK 60%, 38%, 0%, 82% for print applications. Find matching Pantone color. Currently, 1 brand uses this color in their visual identity, making it a proven choice for professional branding and web design.

Mirage color values

HEX: #121C2D
RGB: 18, 28, 45
HSL: 218°, 43%, 12%
CMYK: 60, 38, 0, 82

Shades & tints

Darker Lighter

About this color

Mirage sits at 218° on the color wheel with 43% saturation and 12% lightness, placing it in the blue segment of the spectrum. The moderate 43% saturation gives it enough color presence to register clearly without competing for dominance in a composition. Near-black lightness makes it read as a deep, absorptive tone — color is implied more than seen.

In digital environments, Mirage is rendered as rgb(18, 28, 45), where the blue channel is highest at 45, though it sits close to the other channels. This cool mid-tone is a reliable choice for UI chrome, informational states, and contexts that call for a calm, readable presence.

For print, Mirage translates to a CMYK breakdown of 60C 38M 0Y 82K. The dominant black channel (82%) does most of the tonal work here — cyan, magenta, and yellow contribute minimally, so the printed result will be a deep, near-neutral tone that reads differently from its screen equivalent. In brand applications, this exact value is specified as Big Stone.

Color harmonies

Complementary

Analogous

Triadic

Split-Complementary

How to use Mirage

CSS Variable

:root {
  --brand-primary: #121C2D;
  --brand-primary-rgb: 18, 28, 45;
}

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

Tailwind Config

colors: {
  brand: '#121C2D',
}

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

Print Design (CMYK)

C: 60%
M: 38%
Y: 0%
K: 82%

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

RGB for Screens

rgb(18, 28, 45)
rgba(18, 28, 45, 0.8)

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

Brands using Mirage

1 brand uses this color in their identity

Twilio

Technology • In-house Twilio

Brands using similar hue

24 brand s with colors near 218° on the color wheel

Frequently asked questions

What color is #121C2D?

#121C2D is Mirage, a cool dark color with RGB values of 18, 28, 45. It has a hue of 218°, 43% saturation, and 12% lightness in the HSL color space.

What is the RGB value of #121C2D?

The RGB color code for #121C2D is rgb(18, 28, 45). This means it contains 18 red, 28 green, and 45 blue in the RGB color model.

Is Mirage a warm or cool color?

Mirage (#121C2D) is a cool color with a hue between 120-300° on the color wheel.

How do I use #121C2D in CSS?

You can use #121C2D in CSS with: background-color: #121C2D; or color: #121C2D; or as an RGB value: rgb(18, 28, 45). For print design, use CMYK: 60%, 38%, 0%, 82%.