Tints & Shades
50
100
200
300
400
500
600
700
800
900
Scale from white (50) through Neon Green (500) to black (900), interpolated in Lab color space.
Color Values
- HEX
- #39FF14
- RGB
- rgb(57, 255, 20)
- HSL
- hsl(111, 100%, 54%)
- OKLCH
- oklch(0.871 0.286 142)
- CMYK
- cmyk(78%, 0%, 92%, 0%)
--color-neon-greenbg-[#39FF14]Accessibility
Score: 48/100On White (#FFF)
1.36:1
On Black (#000)
15.49:1
On Light Gray (#F5F5F5)
1.24:1
Best text color on this background:
Design Applications
background-color: #39FF14
color: #39FF14
bg-[#39FF14] text-[#000000]
border-left: 4px solid #39FF14
Color Harmonies
Complementary
Dark Purple
#301934
Split-Complementary
Similar Colors
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. At medium lightness, it is the most versatile tone of this hue family — readable as text on light backgrounds, yet vibrant enough as a visual accent.
Industry Usage
Common contexts and industries where Neon 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
Fails AA
4.5:1 minimum required
Large Text
Fails AA Large
3:1 minimum required
UI Components
Check contrast
3:1 for non-text UI
Neon Green is a light color. Use black (#000000) text on top of it for maximum readability (15.49:1). Avoid white text on this background.
CSS & Code Examples
Background
background-color: #39FF14;Text
color: #39FF14;Border
border: 2px solid #39FF14;Box Shadow
box-shadow: 0 4px 20px #39FF1440;Gradient
background: linear-gradient(135deg, #39FF14, #82ff5b);Tailwind-style
--color-neon-green: #39FF14;Tailwind CSS Utilities
Use arbitrary value syntax in Tailwind CSS to apply Neon Green without a custom config.
Background
bg-[#39FF14]Text
text-[#39FF14]Border
border-[#39FF14]Ring
ring-[#39FF14]Fill
fill-[#39FF14]From (gradient)
from-[#39FF14]Via (gradient)
via-[#39FF14]To (gradient)
to-[#39FF14]Design Tokens
Ready-to-use Neon Green design token in CSS custom properties, SCSS, Tailwind v3/v4, and JSON formats.
CSS Custom Properties
:root {
--color-neon-green: #39FF14;
--color-neon-green-rgb: 57, 255, 20;
--color-neon-green-hsl: 111, 100%, 54%;
}SCSS Variables
$color-neon-green: #39FF14; $color-neon-green-rgb: 57, 255, 20; $color-neon-green-hsl: 111, 100%, 54%;
Tailwind v3 Config
// tailwind.config.js
module.exports = {
theme: {
extend: {
colors: {
'neon-green': '#39FF14',
},
},
},
};Tailwind v4 (@theme)
/* tailwind.css */
@theme {
--color-neon-green: #39FF14;
}JSON Design Token (W3C format)
{
"neon-green": {
"value": "#39FF14",
"type": "color",
"description": "Neon Green — #39FF14"
}
}More green colors
View all →What Does Neon Green Mean? Color Psychology & Cultural Symbolism
The green spectrum contains multitudes: jungle growth and financial gain, medical healing and environmental responsibility. Neon Green at #39FF14 navigates this complexity with a medium quality that emphasizes nature—the aspect of green psychology most useful in healthcare design.
- 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.
- Neon Green's medium lightness (54%) shifts its psychological register: a balanced mid-tone that embodies growth, nature, health, and balance at its most direct.
- At 100% saturation, Neon Green reads as vivid—Electric and lime greens are among the most energetic hues in the spectrum—striking, modern, and attention-commanding, used in sports, gaming, and tech-forward branding.
The enduring power of Neon Green is that it never needs to explain itself—growth, health, and permission are universally understood.
How to Use Neon Green in Design: Applications, Pairings & Best Practices
The design applications of Neon Green span from digital UI states to full brand identity systems. Its vivid saturation (100%) means it reads as a high-energy presence that demands attention in any composition in both contexts—mid-weight applications including UI components, icons, and moderate-emphasis text elements in background uses, more active as an accent.
- UI components: success states, confirmation messages, positive trends—Neon Green performs reliably in all these roles with its medium tonal character.
- Brand & identity: success states, approval indicators, sustainability branding—contexts where Neon Green's vivid quality creates the right register.
- Typography: Neon Green as text requires a dark background; its 54% lightness means it provides 1.4:1 contrast on white, not meeting WCAG AA.
- Neon Green creates strong legibility with black text overlays (15.5:1 contrast ratio), making it a reliable background or surface color in design systems
- Proportional use: Neon Green's vivid saturation (100%) means small applications—accents, highlights, icons—deliver maximum impact without visual fatigue. Reserve large-scale use for intentional brand moments.
The enduring power of Neon Green is that it never needs to explain itself—growth, health, and permission are universally understood.
Neon Green Accessibility: WCAG Contrast Ratios, Color Blindness & Inclusive Design
Neon Green (#39FF14) achieves a 15.49:1 contrast ratio with black text, surpassing the WCAG 2.1 AAA threshold of 7:1. This exceptional contrast qualifies it for body text, UI components at any size, and all accessibility-sensitive interface contexts. Relative luminance: 72.4%.
- As text on white (#FFFFFF): 1.36:1 — Fail
- As text on black (#000000): 15.49:1 — AAA ✓
- Best text color on Neon Green background: Black (#000000) at 15.49:1
- WCAG 2.1 luminance: 72.4% — high-luminance (near-white)—it provides excellent readability for dark text overlays and integrates naturally into light design systems
- Neon Green qualifies for all text sizes including small body copy (AAA).
Neon Green's WCAG profile makes it a compliant choice for most text applications.
Neon Green in Industry: Branding, Design & Market Applications
Across industry research, green-family tones consistently outperform competitors in categories built on growth, nature, health, and balance. Neon Green is a medium expression of this advantage—best positioned in Healthcare & Wellness and adjacent markets.
- 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: Headspace, One Medical, 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: Capital One, PayPal, 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: Patagonia, Allbirds, Grove Collaborative) The challenge is differentiation—nearly every sustainability brand uses green, so typography, illustration style, and specific tone matter more.
- Brand positioning: Neon 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, Neon Green works effectively in financial dashboards, nature and outdoor products, health and wellness UIs—contexts where health serves a secondary but reinforcing role.
Neon Green earns its strongest ROI in industries where trust and recognition compound over time: Healthcare & Wellness, Finance & Banking, Sustainability & Organic. Use it to build the kind of brand recognition that decades reinforce.
Accessibility & Design Guides
Frequently Asked Questions
- What is the hex code for Neon Green? ▾
- The hex code for Neon Green is #39FF14. Its RGB values are rgb(57, 255, 20) and its HSL values are hsl(111, 100%, 54%).
- What does Neon 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. At medium lightness, it is the most versatile tone of this hue family — readable as text on light backgrounds, yet vibrant enough as a visual accent.
- Is Neon Green WCAG accessible? ▾
- Neon Green (#39FF14) does not pass WCAG AA on white (1.36:1 ratio). Use it on dark backgrounds where it achieves 15.49:1. Its overall accessibility score is 48/100.
- What colors go well with Neon Green? ▾
- Neon Green pairs well with its complementary color Dark Purple (#301934). Analogous colors like Avocado and Laurel Green also work harmoniously. Check the Color Harmonies section above for the full palette.
- What is Neon Green used for? ▾
- Neon 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 Neon Green? ▾
- In CSS, use `color: #39FF14` or `background-color: #39FF14`. The CSS custom property is `--color-neon-green: #39FF14`. In Tailwind CSS, use the arbitrary value class `bg-[#39FF14]` for backgrounds or `text-[#39FF14]` for text.