Skip to main content

Ocean Green

#4E9B8F·green family·WCAG AA

Tints & Shades

50

100

200

300

400

500

600

700

800

900

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

Color Values

HEX
#4E9B8F
RGB
rgb(78, 155, 143)
HSL
hsl(171, 33%, 46%)
OKLCH
oklch(0.637 0.079 182)
CMYK
cmyk(50%, 0%, 8%, 39%)
Luminance:0.2705
CSS var:--color-ocean-green
Tailwind:bg-[#4E9B8F]

Accessibility

Score: 39/100

On White (#FFF)

3.28:1

AA Large

On Black (#000)

6.41:1

AA

On Light Gray (#F5F5F5)

3.01:1

AA Large

Best text color on this background:

black6.41:1
Open in Contrast Checker →

Design Applications

Background

background-color: #4E9B8F

Text Color

color: #4E9B8F

bg-[#4E9B8F] text-[#000000]

Accent border card component

border-left: 4px solid #4E9B8F

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 Ocean 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

Passes AA Large

3:1 minimum required

UI Components

Meets 1.4.11

3:1 for non-text UI

Ocean Green is a light color. Use black (#000000) text on top of it for maximum readability (6.41:1). Avoid white text on this background.

CSS & Code Examples

Background

background-color: #4E9B8F;

Text

color: #4E9B8F;

Border

border: 2px solid #4E9B8F;

Box Shadow

box-shadow: 0 4px 20px #4E9B8F40;

Gradient

background: linear-gradient(135deg, #4E9B8F, #7fccbf);

Tailwind-style

--color-ocean-green: #4E9B8F;

Tailwind CSS Utilities

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

Background

bg-[#4E9B8F]

Text

text-[#4E9B8F]

Border

border-[#4E9B8F]

Ring

ring-[#4E9B8F]

Fill

fill-[#4E9B8F]

From (gradient)

from-[#4E9B8F]

Via (gradient)

via-[#4E9B8F]

To (gradient)

to-[#4E9B8F]

Design Tokens

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

CSS Custom Properties

:root {
  --color-ocean-green: #4E9B8F;
  --color-ocean-green-rgb: 78, 155, 143;
  --color-ocean-green-hsl: 171, 33%, 46%;
}

SCSS Variables

$color-ocean-green: #4E9B8F;
$color-ocean-green-rgb: 78, 155, 143;
$color-ocean-green-hsl: 171, 33%, 46%;

Tailwind v3 Config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'ocean-green': '#4E9B8F',
      },
    },
  },
};

Tailwind v4 (@theme)

/* tailwind.css */
@theme {
  --color-ocean-green: #4E9B8F;
}

JSON Design Token (W3C format)

{
  "ocean-green": {
    "value": "#4E9B8F",
    "type": "color",
    "description": "Ocean Green — #4E9B8F"
  }
}

What Does Ocean Green Mean? Color Psychology & Cultural Symbolism

Among the visible spectrum's hues, green holds a special place in human perception—it occupies the exact center wavelength range where the eye's cone cells are most sensitive, creating a uniquely comfortable, balanced viewing experience. Ocean Green (#4E9B8F) channels this as harmony: a quality that feels as natural as it is intentional.

  • Across color psychology research, green consistently tests high for "health" associations, making Ocean Green a reliable vehicle for harmony in cross-demographic audiences.
  • Brand designers draw on green-family tones to project trustworthiness and reliability—values that Ocean Green communicates in a medium key.
  • At 33% saturation, Ocean Green reads as subdued—neither overwhelming nor passive, landing in the growth, nature, health, and balance zone with measured confidence.
  • Ocean Green's medium lightness (46%) shifts its psychological register: a balanced mid-tone that embodies growth, nature, health, and balance at its most direct.

The enduring power of Ocean Green is that it never needs to explain itself—growth, health, and permission are universally understood.

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

The design applications of Ocean Green span from digital UI states to full brand identity systems. Its subdued saturation (33%) means it reads as a refined, understated presence suited to sophisticated, restrained design systems in both contexts—strong accents, headers, and primary brand applications where visual authority is required in background uses, more active as an accent.

  • Avoid: warning or danger contexts (except for safety signs), over-saturated versions in premium luxury branding, and contexts requiring urgency.
  • Color harmonies: Ocean Green's complementary color creates a high-energy split ideal for promotional design; its analogous palette (±30° hue) builds cohesive, monochromatic sophistication.
  • Proportional use: Ocean Green's subdued quality means it scales well across proportions—from full-bleed backgrounds to single-pixel borders—making it an unusually versatile palette component.
  • Ocean Green creates strong legibility with black text overlays (6.4:1 contrast ratio), making it a reliable background or surface color in design systems
  • Typography: Ocean Green as text requires a dark background; its 46% lightness means it provides 3.3:1 contrast on white, not meeting WCAG AA.

The enduring power of Ocean Green is that it never needs to explain itself—growth, health, and permission are universally understood.

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

Ocean Green (#4E9B8F) reaches 6.41:1 contrast with black 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: 27.1%.

  • As text on white (#FFFFFF): 3.28:1 — AA (large text only)
  • As text on black (#000000): 6.41:1 — AA ✓
  • Best text color on Ocean Green background: Black (#000000) at 6.41:1
  • WCAG 2.1 luminance: 27.1% — mid-range luminance—it sits in the transition zone where both dark and light text approaches require testing against the 4.5:1 WCAG threshold
  • Ocean Green qualifies for normal body text and all larger sizes (AA).

Ocean Green's WCAG profile makes it a compliant choice for most text applications.

Ocean Green in Industry: Branding, Design & Market Applications

Ocean Green (#4E9B8F) is most at home in industries where growth, nature, health, and balance are key brand values. Its medium quality makes it particularly effective in Healthcare & Wellness contexts, where the subdued saturation signals health at exactly the right register.

  • 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: Ocean 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, Ocean Green works effectively in financial dashboards, nature and outdoor products, health and wellness UIs—contexts where health serves a secondary but reinforcing role.

The industries where Ocean Green performs best are those where the audience expects health. Build brand strategy around this alignment, not against it.

Frequently Asked Questions

What is the hex code for Ocean Green?
The hex code for Ocean Green is #4E9B8F. Its RGB values are rgb(78, 155, 143) and its HSL values are hsl(171, 33%, 46%).
What does Ocean 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 Ocean Green WCAG accessible?
Ocean Green (#4E9B8F) passes WCAG AA-large on white with a 3.28:1 contrast ratio. Its overall accessibility score is 39/100.
What colors go well with Ocean Green?
Ocean Green pairs well with its complementary color Carmine (#960018). Analogous colors like Malachite and Shamrock also work harmoniously. Check the Color Harmonies section above for the full palette.
What is Ocean Green used for?
Ocean 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 Ocean Green?
In CSS, use `color: #4E9B8F` or `background-color: #4E9B8F`. The CSS custom property is `--color-ocean-green: #4E9B8F`. In Tailwind CSS, use the arbitrary value class `bg-[#4E9B8F]` for backgrounds or `text-[#4E9B8F]` for text.