Spectra is a
cool dark color with the hex code #405759.
This muted hue can be represented as RGB
64, 87, 89 in digital design or CMYK 28%, 2%, 0%, 65% for print applications.
Find matching Pantone color.
Spectra
#405759
Spectra color values
- HEX
- #405759
- RGB
- 64, 87, 89
- HSL
- 185°, 16%, 30%
- CMYK
- 28, 2, 0, 65
Shades & tints
Darker Lighter
About this color
Spectra sits at 185° on the color wheel with 16% saturation and 30% lightness, placing it in the cyan segment of the spectrum. Its restrained 16% saturation keeps the hue subtle — present but not assertive, making it easy to layer over or under more expressive colors. The lower lightness gives it weight and depth, lending gravity to any palette it enters.
In digital environments, Spectra is rendered as rgb(64, 87, 89), where the blue channel is highest at 89, though it sits close to the other channels. Low saturation at this depth produces the kind of sophisticated, near-neutral dark that works for application shells, sidebars, and dark-mode base layers.
For print, Spectra translates to a CMYK breakdown of 28C 2M 0Y 65K. A substantial black component (65%) anchors this color in print. The remaining ink channels supplement rather than drive the hue, which keeps the result stable across different paper stocks. 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 Spectra
CSS Variable
:root {
--brand-primary: #405759;
--brand-primary-rgb: 64, 87, 89;
}Define as a CSS custom property for consistent theming across your site.
Tailwind Config
colors: {
brand: '#405759',
}
Add to your Tailwind config to use classes like bg-brand.
Print Design (CMYK)
C: 28%
M: 2%
Y: 0%
K: 65%Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.
RGB for Screens
rgb(64, 87, 89)
rgba(64, 87, 89, 0.8)Use RGB notation for compatibility or add alpha channel for transparency.
Frequently asked questions
What color is #405759?
#405759 is Spectra, a cool dark color with RGB values of 64, 87, 89. It has a hue of 185°, 16%
saturation, and 30% lightness in the HSL color
space.
What is the RGB value of #405759?
The RGB color code for #405759 is rgb(64, 87, 89). This means it contains 64 red,
87 green, and 89 blue in the RGB color model.
Is Spectra a warm or cool color?
Spectra (#405759) is a cool color with a hue between 120-300° on the color wheel.
How do I use #405759 in CSS?
You can use #405759 in CSS with:
background-color: #405759; or color: #405759; or as an RGB value: rgb(64, 87, 89). For print design, use CMYK: 28%, 2%, 0%, 65%.