Fern Hex Code — #4F7942

RGB, HSL, and CMYK values for Fern.

Last updated: April 6, 2026

Fern Color Values

Format	Value
HEX	#4F7942
RGB	rgb(79, 121, 66)
HSL	hsl(106, 29%, 37%)
CMYK	cmyk(35%, 0%, 45%, 53%)

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About Fern

Color psychology: Sincerity, nature.

Fern (#4F7942) is a dark shade of green with a hue angle of 106° on the color wheel, 29% saturation, and 37% lightness. It's commonly used in web design, graphic design, and branding where sincerity, nature are desired associations.

In color theory, Fern sits in the neutral section of the spectrum. Its low saturation creates a muted, understated tone — great for backgrounds, borders, and subtle UI elements.

When to Use Fern in Design

Web Design

Use Fern for headings, links, or accent elements against light backgrounds. Dark colors like this provide strong contrast and draw the eye to important content.

Branding & Logo

Fern conveys sincerity, nature — consider it for brands that want to project these qualities. Test it at small sizes (favicon, social avatar) to ensure it remains recognizable.

Print Design

Use the CMYK values (C:35% M:0% Y:45% K:53%) for accurate print reproduction in brochures, business cards, and packaging. Request a physical proof — screen colors often appear more vibrant than their printed equivalents.

UI / UX Design

Dark colors like Fern are effective for primary buttons, navigation bars, and text. Use a lighter tint (increase HSL lightness to 90%+) for hover backgrounds.

How to Use Fern in CSS

/* Using HEX */
color: #4F7942;
background-color: #4F7942;

/* Using RGB */
color: rgb(79, 121, 66);

/* Using HSL — best for creating variations */
color: hsl(106, 29%, 37%);

/* Transparent overlay (50% opacity) */
background-color: rgba(79, 121, 66, 0.5);

/* Lighter variant for hover states */
background-color: hsl(106, 29%, 47%);

/* Darker variant for active states */
background-color: hsl(106, 29%, 27%);

HSL is the most flexible format for creating color systems. By adjusting the lightness value, you can generate an entire shade scale from Fern without changing its core hue or saturation.

Colors That Go With Fern

Complementary

Analogous

Triadic

Similar Shades of Green

Kelly Green

#4CBB17

Neon Green

#39FF14

Pistachio

#93C572

Green

#008000

Lime

#00FF00

Dark Green

#006400

Frequently Asked Questions

What is the hex code for Fern?

The hex color code for Fern is #4F7942. In CSS, apply it as text color with color: #4F7942;, as a background with background-color: #4F7942;, or as a border with border-color: #4F7942;. Hex is the most widely used color notation on the web because it is compact, supported by every browser, and easy to copy between design tools like Figma, Photoshop, and code editors.

What is Fern in RGB and when should I use RGB?

Fern in RGB is rgb(79, 121, 66), where Red=79, Green=121, and Blue=66 on a 0-255 scale. Use RGB when you need transparency — rgba(79, 121, 66, 0.5) creates a 50% transparent version. RGB is also the native format for HTML canvas, WebGL, and JavaScript image manipulation, since each channel represents the intensity of that primary light color on screen displays.

How to use Fern in CSS with different color formats?

Fern can be applied in CSS using multiple formats: (1) Hex: color: #4F7942; — most compact and widely used. (2) RGB: color: rgb(79, 121, 66); — useful when calculating colors dynamically in JavaScript. (3) HSL: color: hsl(106, 29%, 37%); — best for creating variations, since adjusting lightness produces lighter or darker shades while keeping the same hue. (4) With transparency: rgba(79, 121, 66, 0.8); or hsla(106, 29%, 37%, 0.8); for 80% opacity overlays.

What is the HSL value of Fern and why is HSL useful for designers?

Fern in HSL is hsl(106, 29%, 37%). HSL stands for Hue (106 degrees on the color wheel), Saturation (29% color intensity), and Lightness (37% brightness). HSL is the most intuitive format for designers because you can create harmonious palettes by rotating the hue, generate hover effects by increasing lightness by 10%, and desaturate colors by reducing the S value. This makes Fern a dark, muted neutral-toned color.

What is the CMYK value of Fern for print design?

Fern in CMYK is C:35% M:0% Y:45% K:53%. CMYK (Cyan, Magenta, Yellow, Key/Black) is the standard color model for professional printing — business cards, brochures, merchandise, and packaging. When designing for print in Adobe InDesign or Illustrator, use these exact CMYK values to ensure accurate color reproduction. Screen colors (RGB) often appear more vibrant than their printed CMYK equivalents, so always request a physical proof for brand-critical materials.

What colors pair well with Fern in design projects?

Green pairs naturally with white, cream, and brown tones. Dark greens work with gold for a luxury feel. In UI design, green is universally associated with success, confirmation, and positive actions.

Is Fern (#4F7942) accessible for web design and WCAG compliant?

Green text needs to be dark enough for contrast (below #2E7D32 on white). Never rely solely on red/green to distinguish states — about 1 in 12 men cannot distinguish between these two colors. For Fern specifically: as a dark shade (lightness: 37%), it can work as a text color on light backgrounds, but verify the exact contrast ratio using a contrast checker tool. WCAG 2.1 requires a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text (18px+ bold or 24px+ regular).

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Written by

Tamanna Tasnim

Senior Full Stack Developer

ToolsContainerDhaka, Bangladesh5+ years experiencetasnim@toolscontainer.com www.toolscontainer.com

Full-stack developer with deep expertise in data formats, APIs, and developer tooling. Writes in-depth technical comparisons and conversion guides backed by hands-on engineering experience across modern web stacks.

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