Mariner is a
cool medium color with the hex code #3373CC.
This vibrant hue can be represented as RGB
51, 115, 204 in digital design or CMYK 75%, 44%, 0%, 20% for print applications.
Find matching Pantone color.
Mariner
#3373CC
Mariner color values
- HEX
- #3373CC
- RGB
- 51, 115, 204
- HSL
- 215°, 60%, 50%
- CMYK
- 75, 44, 0, 20
Shades & tints
Darker Lighter
About this color
Mariner sits at 215° on the color wheel with 60% saturation and 50% lightness, placing it in the blue segment of the spectrum. At 60% saturation, the hue is fully legible and confident — richly chromatic without tipping into high-contrast territory. Its mid-range lightness positions it as a mid-tone: neither a background color nor a deep accent, but something in between.
In digital environments, Mariner is rendered as rgb(51, 115, 204), where the blue channel is highest at 204, producing a strongly blue character. The mid-range lightness and strong saturation make this versatile for both foreground and background roles, depending on what it is paired against.
For print, Mariner translates to a CMYK breakdown of 75C 44M 0Y 20K. The low-to-moderate black value (20%) means the color's character in print comes primarily from its cyan ink content (75%), with black serving as a supporting shadow tone. 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 Mariner
CSS Variable
:root {
--brand-primary: #3373CC;
--brand-primary-rgb: 51, 115, 204;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#3373CC',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 75%
M: 44%
Y: 0%
K: 20%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(51, 115, 204)
rgba(51, 115, 204, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Frequently asked questions
What color is #3373CC?
#3373CC is Mariner, a cool medium color with RGB values of 51, 115, 204. It has a hue of 215°, 60%
saturation, and 50% lightness in the HSL color
space.
What is the RGB value of #3373CC?
The RGB color code for #3373CC is rgb(51, 115, 204). This means it contains 51 red,
115 green, and 204 blue in the RGB color model.
Is Mariner a warm or cool color?
Mariner (#3373CC) is a cool color with a hue between 120-300° on the color wheel.
How do I use #3373CC in CSS?
You can use #3373CC in CSS with:
background-color: #3373CC; or color: #3373CC; or as an RGB value: rgb(51, 115, 204). For print design, use CMYK: 75%, 44%, 0%, 20%.