Tints & Shades
50
100
200
300
400
500
600
700
800
900
Scale from white (50) through Dark Green (500) to black (900), interpolated in Lab color space.
Color Values
- HEX
- #006400
- RGB
- rgb(0, 100, 0)
- HSL
- hsl(120, 100%, 20%)
- OKLCH
- oklch(0.436 0.148 142)
- CMYK
- cmyk(100%, 0%, 100%, 61%)
--color-dark-greenbg-[#006400]Accessibility
Score: 71/100On White (#FFF)
7.44:1
On Black (#000)
2.82:1
On Light Gray (#F5F5F5)
6.82:1
Best text color on this background:
Design Applications
background-color: #006400
color: #006400
bg-[#006400] text-[#FFFFFF]
border-left: 4px solid #006400
Color Harmonies
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. Its very dark, near-black depth creates dramatic intensity — maximally contrastive, powerful, and reserved for focal design elements where other dark colors would disappear.
Industry Usage
Common contexts and industries where Dark 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
Dark Green is a dark color. Use white (#FFFFFF) text on top of it for maximum readability (7.44:1). Avoid small black text on this background.
CSS & Code Examples
Background
background-color: #006400;Text
color: #006400;Border
border: 2px solid #006400;Box Shadow
box-shadow: 0 4px 20px #00640040;Gradient
background: linear-gradient(135deg, #006400, #429333);Tailwind-style
--color-dark-green: #006400;Tailwind CSS Utilities
Use arbitrary value syntax in Tailwind CSS to apply Dark Green without a custom config.
Background
bg-[#006400]Text
text-[#006400]Border
border-[#006400]Ring
ring-[#006400]Fill
fill-[#006400]From (gradient)
from-[#006400]Via (gradient)
via-[#006400]To (gradient)
to-[#006400]Design Tokens
Ready-to-use Dark Green design token in CSS custom properties, SCSS, Tailwind v3/v4, and JSON formats.
CSS Custom Properties
:root {
--color-dark-green: #006400;
--color-dark-green-rgb: 0, 100, 0;
--color-dark-green-hsl: 120, 100%, 20%;
}SCSS Variables
$color-dark-green: #006400; $color-dark-green-rgb: 0, 100, 0; $color-dark-green-hsl: 120, 100%, 20%;
Tailwind v3 Config
// tailwind.config.js
module.exports = {
theme: {
extend: {
colors: {
'dark-green': '#006400',
},
},
},
};Tailwind v4 (@theme)
/* tailwind.css */
@theme {
--color-dark-green: #006400;
}JSON Design Token (W3C format)
{
"dark-green": {
"value": "#006400",
"type": "color",
"description": "Dark Green — #006400"
}
}More green colors
View all →What Does Dark Green Mean? Color Psychology & Cultural Symbolism
The green spectrum contains multitudes: jungle growth and financial gain, medical healing and environmental responsibility. Dark Green at #006400 navigates this complexity with a dark quality that emphasizes health—the aspect of green psychology most useful in healthcare design.
- Across color psychology research, green consistently tests high for "health" associations, making Dark Green a reliable vehicle for health in cross-demographic audiences.
- Brand designers draw on green-family tones to project trustworthiness and reliability—values that Dark Green communicates in a dark key.
- At 100% saturation, Dark 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.
- Dark Green's dark lightness (20%) shifts its psychological register: Forest and hunter greens project gravitas, tradition, and wealth—the preferred territory for luxury brands, financial institutions, and premium environmental products.
Dark Green is permission in color form—it makes things feel right, approved, and moving forward.
How to Use Dark Green in Design: Applications, Pairings & Best Practices
Dark Green brings life to design systems that risk feeling cold or clinical. Its dark character makes it versatile as both a primary brand color and a functional state color—success, approval, and positive actions feel natural expressed in green.
- Avoid: warning or danger contexts (except for safety signs), over-saturated versions in premium luxury branding, and contexts requiring urgency.
- Color harmonies: Dark Green's complementary color creates a high-energy split ideal for promotional design; its analogous palette (±30° hue) builds cohesive, monochromatic sophistication.
- Proportional use: Dark 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.
- As a dark tone, Dark Green creates maximum contrast with white and light neutrals—excellent for creating premium dark-mode sections, bold headers, and high-drama brand moments
- Typography: Dark Green works as a background behind white text but requires careful sizing—test at intended heading and body sizes before finalizing.
Dark Green is permission in color form—it makes things feel right, approved, and moving forward.
Dark Green Accessibility: WCAG Contrast Ratios, Color Blindness & Inclusive Design
Dark Green (#006400) achieves a 7.44:1 contrast ratio with white 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: 9.1%.
- As text on white (#FFFFFF): 7.44:1 — AAA ✓
- As text on black (#000000): 2.82:1 — Fail
- Best text color on Dark Green background: White (#FFFFFF) at 7.44:1
- WCAG 2.1 luminance: 9.1% — low luminance (dark)—it provides strong contrast for white and light overlaid text, functioning well as a background in dark-mode and header contexts
- Dark Green qualifies for all text sizes including small body copy (AAA).
Always verify Dark Green at its final intended size and weight using a real contrast checker—font weight and rendering environment affect perceived legibility beyond what raw ratios capture.
Dark 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. Dark Green is a dark 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: Dark 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, Dark Green works effectively in financial dashboards, nature and outdoor products, health and wellness UIs—contexts where nature serves a secondary but reinforcing role.
Dark 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 Dark Green? ▾
- The hex code for Dark Green is #006400. Its RGB values are rgb(0, 100, 0) and its HSL values are hsl(120, 100%, 20%).
- What does Dark 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 very dark, near-black depth creates dramatic intensity — maximally contrastive, powerful, and reserved for focal design elements where other dark colors would disappear.
- Is Dark Green WCAG accessible? ▾
- Dark Green (#006400) passes WCAG AAA on white with a 7.44:1 contrast ratio. Its overall accessibility score is 71/100.
- What colors go well with Dark Green? ▾
- Dark Green pairs well with its complementary color Purple (#800080). Analogous colors like Chartreuse and Harlequin also work harmoniously. Check the Color Harmonies section above for the full palette.
- What is Dark Green used for? ▾
- Dark 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 Dark Green? ▾
- In CSS, use `color: #006400` or `background-color: #006400`. The CSS custom property is `--color-dark-green: #006400`. In Tailwind CSS, use the arbitrary value class `bg-[#006400]` for backgrounds or `text-[#006400]` for text.