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Fern Green

#4F7942·green family·WCAG AA

Tints & Shades

50

100

200

300

400

500

600

700

800

900

Scale from white (50) through Fern Green (500) to black (900), interpolated in Lab color space.

Color Values

HEX
#4F7942
RGB
rgb(79, 121, 66)
HSL
hsl(106, 29%, 37%)
OKLCH
oklch(0.531 0.095 139)
CMYK
cmyk(35%, 0%, 45%, 53%)
Luminance:0.1573
CSS var:--color-fern-green
Tailwind:bg-[#4F7942]

Accessibility

Score: 54/100

On White (#FFF)

5.07:1

AA

On Black (#000)

4.15:1

AA Large

On Light Gray (#F5F5F5)

4.65:1

AA

Best text color on this background:

white5.07:1
Open in Contrast Checker →

Design Applications

Background

background-color: #4F7942

Text Color

color: #4F7942

bg-[#4F7942] text-[#FFFFFF]

Accent border card component

border-left: 4px solid #4F7942

Color Meaning & Psychology

Green occupies the center of the visible spectrum where the eye is most sensitive, making it the easiest color to process — literally restful for the eye. Green's associations with nature, growth, and fresh produce are deeply biological, rooted in the evolutionary advantage of finding food. In finance, "going green" means profit. In design, green signals health, sustainability, and natural ingredients. Darker greens evoke prestige and reliability; lighter greens feel fresh and energetic; blue-greens feel sophisticated and trustworthy. Green is uniquely cross-cultural in positive associations, though it represents environmental risk in some financial contexts. Its deeper, richer tone gives it gravitas and sophistication, making it well-suited for primary brand colors, typography, and contexts where authority matters.

Industry Usage

Common contexts and industries where Fern Green is applied in professional design.

  • Financial services and investment platforms
  • Health, wellness, and organic food brands
  • Environmental and sustainability organizations
  • Pharmaceutical and medical products
  • Agriculture and farming brands
  • Eco-friendly consumer goods
  • Real estate and property development
  • Success and achievement badges in UI

Accessibility Considerations

Normal Text

Passes AA

4.5:1 minimum required

Large Text

Passes AA Large

3:1 minimum required

UI Components

Meets 1.4.11

3:1 for non-text UI

Fern Green is a dark color. Use white (#FFFFFF) text on top of it for maximum readability (5.07:1). Avoid small black text on this background.

CSS & Code Examples

Background

background-color: #4F7942;

Text

color: #4F7942;

Border

border: 2px solid #4F7942;

Box Shadow

box-shadow: 0 4px 20px #4F794240;

Gradient

background: linear-gradient(135deg, #4F7942, #7da86e);

Tailwind-style

--color-fern-green: #4F7942;

Tailwind CSS Utilities

Use arbitrary value syntax in Tailwind CSS to apply Fern Green without a custom config.

Background

bg-[#4F7942]

Text

text-[#4F7942]

Border

border-[#4F7942]

Ring

ring-[#4F7942]

Fill

fill-[#4F7942]

From (gradient)

from-[#4F7942]

Via (gradient)

via-[#4F7942]

To (gradient)

to-[#4F7942]

Design Tokens

Ready-to-use Fern Green design token in CSS custom properties, SCSS, Tailwind v3/v4, and JSON formats.

CSS Custom Properties

:root {
  --color-fern-green: #4F7942;
  --color-fern-green-rgb: 79, 121, 66;
  --color-fern-green-hsl: 106, 29%, 37%;
}

SCSS Variables

$color-fern-green: #4F7942;
$color-fern-green-rgb: 79, 121, 66;
$color-fern-green-hsl: 106, 29%, 37%;

Tailwind v3 Config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'fern-green': '#4F7942',
      },
    },
  },
};

Tailwind v4 (@theme)

/* tailwind.css */
@theme {
  --color-fern-green: #4F7942;
}

JSON Design Token (W3C format)

{
  "fern-green": {
    "value": "#4F7942",
    "type": "color",
    "description": "Fern Green — #4F7942"
  }
}

What Does Fern Green Mean? Color Psychology & Cultural Symbolism

Color researchers consistently find that green environments lower cortisol levels and increase feelings of calm and restorative focus. Fern Green carries this quality into designed spaces—projecting nature through its deep character at 37% lightness.

  • Green carries multiple Western associations: nature and the environment, financial success and prosperity (money in the US), health and wellness, and the "go" signal in traffic systems. Dark greens suggest wealth and tradition; bright greens signal vitality and environmental consciousness.
  • In Chinese culture, green is associated with growth, harmony, and fertility. In Islam, green holds sacred significance as the color of paradise and the Prophet. In Japan, green (midori) represents youth, freshness, and eternal life.
  • Fern Green's deep lightness (37%) shifts its psychological register: a balanced mid-tone that embodies growth, nature, health, and balance at its most direct.
  • At 29% saturation, Fern Green reads as muted—Olive and sage greens carry a sophisticated, muted warmth—earthy and organic, excellent for natural products, lifestyle brands, and design systems that prioritize refinement.

In a well-designed system, Fern Green is the color that answers yes. Use it where affirmation matters.

How to Use Fern Green in Design: Applications, Pairings & Best Practices

In design, Fern Green does double duty: as a semantic color (success, go, positive) and an aesthetic one (natural, health-forward, balanced). Understanding which role it's playing in any given context determines how to use it effectively.

  • UI components: success states, confirmation messages, positive trends—Fern Green performs reliably in all these roles with its deep tonal character.
  • Brand & identity: success states, approval indicators, sustainability branding—contexts where Fern Green's muted quality creates the right register.
  • Typography: Fern Green works as a background behind white text but requires careful sizing—test at intended heading and body sizes before finalizing.
  • As a dark tone, Fern Green creates maximum contrast with white and light neutrals—excellent for creating premium dark-mode sections, bold headers, and high-drama brand moments
  • Proportional use: Fern Green's muted quality means it scales well across proportions—from full-bleed backgrounds to single-pixel borders—making it an unusually versatile palette component.

In a well-designed system, Fern Green is the color that answers yes. Use it where affirmation matters.

Fern Green Accessibility: WCAG Contrast Ratios, Color Blindness & Inclusive Design

Fern Green (#4F7942) reaches 5.07:1 contrast with white text—meeting WCAG 2.1 AA minimum of 4.5:1 for normal text and 3:1 for large text. It clears standard production accessibility requirements. Relative luminance: 15.7%.

  • As text on white (#FFFFFF): 5.07:1 — AA ✓
  • As text on black (#000000): 4.15:1 — AA (large text only)
  • Best text color on Fern Green background: White (#FFFFFF) at 5.07:1
  • WCAG 2.1 luminance: 15.7% — low luminance (dark)—it provides strong contrast for white and light overlaid text, functioning well as a background in dark-mode and header contexts
  • Fern Green qualifies for normal body text and all larger sizes (AA).

For production use, test Fern Green against your specific background colors rather than assuming #FFFFFF or #000000 performance translates. Surrounding colors alter perceived contrast.

Fern Green in Industry: Branding, Design & Market Applications

Fern Green's brand positioning falls squarely in the territory of growth, nature, health, and balance. Industry data supports its strongest performance in healthcare, finance, food & organic categories, where the muted saturation calibrates the message at a deep, considered level.

  • Healthcare & Wellness: Green's association with health, nature, and healing makes it the second-most-common color in healthcare branding (after blue). It signals vitality, recovery, and natural wellness without the clinical coldness of pure white or blue. (examples: CVS Health, Mayo Clinic, Kaiser Permanente) Works best in teal-green and sage variations for digital health products; more saturated greens suit fitness and sports medicine.
  • Finance & Banking: In Western markets, the green-money association is deeply embedded. Financial institutions use dark, sophisticated greens to communicate growth, prosperity, and fiduciary reliability. It's equally effective for positive portfolio indicators and "go" confirmation states in trading UIs. (examples: JPMorgan Chase, Goldman Sachs, Visa) Dark greens with gold accents signal premium financial services; bright greens in fintech apps signal growth metrics.
  • Sustainability & Organic: Green is the categorical color of environmental consciousness. Sustainability brands, organic food labels, and clean-energy companies use it as an immediate, unambiguous signal of ecological values and natural origin. (examples: Pela Case, Grove Collaborative, Allbirds) The challenge is differentiation—nearly every sustainability brand uses green, so typography, illustration style, and specific tone matter more.
  • Brand positioning: Fern Green is best suited for brands projecting trustworthiness, reliability, growth. Categories outside this positioning—warning or danger contexts (except for safety signs)—tend to see weaker results.
  • Adjacent applications: Beyond primary industries, Fern Green works effectively in financial dashboards, nature and outdoor products, health and wellness UIs—contexts where growth serves a secondary but reinforcing role.

For marketers and brand strategists, Fern Green is a commitment to growth, nature, health, and balance. Match it with industries that make that promise and it will pay dividends consistently.

Frequently Asked Questions

What is the hex code for Fern Green?
The hex code for Fern Green is #4F7942. Its RGB values are rgb(79, 121, 66) and its HSL values are hsl(106, 29%, 37%).
What does Fern Green mean in design?
Green occupies the center of the visible spectrum where the eye is most sensitive, making it the easiest color to process — literally restful for the eye. Green's associations with nature, growth, and fresh produce are deeply biological, rooted in the evolutionary advantage of finding food. In finance, "going green" means profit. In design, green signals health, sustainability, and natural ingredients. Darker greens evoke prestige and reliability; lighter greens feel fresh and energetic; blue-greens feel sophisticated and trustworthy. Green is uniquely cross-cultural in positive associations, though it represents environmental risk in some financial contexts. Its deeper, richer tone gives it gravitas and sophistication, making it well-suited for primary brand colors, typography, and contexts where authority matters.
Is Fern Green WCAG accessible?
Fern Green (#4F7942) passes WCAG AA on white with a 5.07:1 contrast ratio. Its overall accessibility score is 54/100.
What colors go well with Fern Green?
Fern Green pairs well with its complementary color Glossy Grape (#AB92B3). Analogous colors like Moss Green and Camo Green also work harmoniously. Check the Color Harmonies section above for the full palette.
What is Fern Green used for?
Fern Green is commonly used for: Financial services and investment platforms; Health, wellness, and organic food brands; Environmental and sustainability organizations; Pharmaceutical and medical products; Agriculture and farming brands.
What are the CSS and Tailwind values for Fern Green?
In CSS, use `color: #4F7942` or `background-color: #4F7942`. The CSS custom property is `--color-fern-green: #4F7942`. In Tailwind CSS, use the arbitrary value class `bg-[#4F7942]` for backgrounds or `text-[#4F7942]` for text.