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Mariner

#006FCF aka “Amex Blue” by American Express

Mariner is a cool medium color with the hex code #006FCF. Also known as "Amex Blue" by American Express . This vibrant hue can be represented as RGB 0, 111, 207 in digital design or CMYK 100%, 46%, 0%, 19% 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.

Mariner color values

HEX
#006FCF
RGB
0, 111, 207
HSL
208°, 100%, 41%
CMYK
100, 46, 0, 19

About this color

Mariner sits at 208° on the color wheel with 100% saturation and 41% lightness, placing it in the blue segment of the spectrum. With saturation at 100%, this is a high-chroma color: the kind that anchors palettes and demands considered placement. 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(0, 111, 207), where the blue channel is highest at 207, 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 100C 46M 0Y 19K. The low-to-moderate black value (19%) means the color's character in print comes primarily from its cyan ink content (100%), with black serving as a supporting shadow tone. In brand applications, this exact value is specified as Amex Blue.

How to use Mariner

CSS Variable

:root {
  --brand-primary: #006FCF;
  --brand-primary-rgb: 0, 111, 207;
}

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

Tailwind Config

colors: {
  brand: '#006FCF',
}

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

Print Design (CMYK)

C: 100%
M: 46%
Y: 0%
K: 19%

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

RGB for Screens

rgb(0, 111, 207)
rgba(0, 111, 207, 0.8)

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

Brands using Mariner

1 brand uses this color in their identity

Frequently asked questions

What color is #006FCF?
#006FCF is Mariner, a cool medium color with RGB values of 0, 111, 207. It has a hue of 208°, 100% saturation, and 41% lightness in the HSL color space.
What is the RGB value of #006FCF?
The RGB color code for #006FCF is rgb(0, 111, 207). This means it contains 0 red, 111 green, and 207 blue in the RGB color model.
Is Mariner a warm or cool color?
Mariner (#006FCF) is a cool color with a hue between 120-300° on the color wheel.
How do I use #006FCF in CSS?
You can use #006FCF in CSS with: background-color: #006FCF; or color: #006FCF; or as an RGB value: rgb(0, 111, 207). For print design, use CMYK: 100%, 46%, 0%, 19%.