Is Dark Olive Green (#556B2F) accessible for digital body text?

Against a pure white background (#FFFFFF), #556B2F achieves a contrast ratio of 5.95:1 (Passing WCAG AA normal text). Against a dark slate background (#0F172A), it achieves a contrast ratio of 3.00:1 (Failing WCAG AA normal text).

Which color harmonies pair best with Dark Olive Green?

The exact complementary color for #556B2F is #452F6A. For analogous pairings, use #6A622F and #376A2F. You can explore these combinations further in our Color Harmony Generator.

Color Directory/Dark Olive Green

Dark Olive Green (#556B2F)

Q: What are the exact digital and print color codes for Dark Olive Green (#556B2F)?

Dark Olive Green has the HEX code #556B2F. In RGB color coordinates, its values are 85, 107, 47. In HSL, it is 82°, 39%, 30%. In CMYK print values, it corresponds to C:21% M:0% Y:56% K:58%.

Luminance: 13% · Nearest standard name: Dark Olive Green

Generate Around This Color

DARK OLIVE GREEN

#556B2F

rgb(85, 107, 47) · hsl(82°, 39%, 30%)

HEX#556B2F

RGB85, 107, 47

HSL82°, 39%, 30%

HSV / HSB82°, 56%, 42%

CMYK (Print)21%, 0%, 56%, 58%

Color Harmonies

Complementary

#556B2F#452F6A

Analogous

#6A622F#556B2F#376A2F

Triadic

#556B2F#2F546A#6A2F54

Tints & Shades

Lighter Tints

Darker Shades

WCAG 2.2 Contrast Verification

Against White (#FFFFFF)5.95:1

Sample text rendered with #556B2F on white

AA Normal: PASSAA Large: PASS

Against Dark (#0F172A)3.00:1

Sample text rendered with #556B2F on dark

AA Normal: FAILAA Large: PASS

Palettes Featuring Similar Tones

cp-featured-01Technology

TechModernCool

cp-featured-02Sunset

SunsetGradientCreative

cp-featured-03Vintage

VintageRetroWarm

cp-featured-04Gaming

Cyber Glitch Protocol

GamingFuturisticNeon

Comprehensive Color Profile & Design Architecture

The Complete Color Guide to Dark Olive Green (#556B2F)

Dark Olive Green (#556B2F) is a distinct shade within the Emerald Green chromatic spectrum. Characterized by an optical luminance of 13% and a warm-cool hybrid (vegetal / lime) color temperature, this tone plays a vital role across web applications, brand identities, and editorial typography. Discover its mathematical harmonies, accessibility metrics, UI engineering roles, and front-end code tokens.

Technical Colorimetry & Coordinate Breakdown

Exact mathematical values across digital display, print press, and human perceptual spaces.

HEX Code#556B2F

RGB Space85, 107, 47

HSL Values82°, 39%, 30%

HSV / HSB82°, 56%, 42%

CMYK Ink21%, 0%, 56%, 58%

TemperatureWarm-Cool Hybrid (Vegetal / Lime)

Optical Color Harmony Formulas for Dark Olive Green

Geometric intervals calculated from #556B2F on the 360-degree color wheel.

Direct Polar (180°)#452F6A

Complementary Harmony

Pairs Dark Olive Green with its polar opposite (#452F6A) to create maximum optical contrast, perfect for high-converting call-to-action buttons.

Adjacent (±30°)#6A622F · #376A2F

Analogous Harmony

Positions adjacent neighboring hues on either side of Dark Olive Green for serene, gentle, and organic visual transitions.

Split Angles (150° / 210°)#2F376A · #622F6A

Split-Complementary

Uses the two colors flanking the direct complement of Dark Olive Green, offering rich visual variety without harsh chromatic vibration.

Triangular (120°)#2F546A · #6A2F54

Triadic Harmony

Forms an equilateral triangle on the color wheel, generating playful, dynamic energy when balanced against a neutral background.

Rectangular (90°)#2F6A62 · #452F6A · #6A2F37

Tetradic (Square) Harmony

A rich four-color scheme combining two complementary pairs, ideal for complex dashboards, gaming HUDs, and multi-tier charts.

Interactive Exploration

Build Palettes With Dark Olive Green

Lock #556B2F inside our interactive generator to calculate live matching palettes in real time.

Launch Palette Generator

The 60-30-10 UI Implementation Role for Dark Olive Green

Recommended proportional volume and semantic interface assignment.

Recommended Assignment: Interactive Brand Accent (10% Volume)

With a saturation of 39% and lightness of 30%, Dark Olive Green (#556B2F) acts as an attention-grabbing focal point. In user interfaces, reserve it for primary CTA buttons, active state indicators, and notification badges to draw user clicks immediately.

Light Mode SurfaceIdeal for buttons and badges

Dark Mode AdaptationDesaturate slightly for ambient glow

Tonal Expansion ScaleView 10-step design token ramp →

Color Psychology & Industry Alignment

Strategic cognitive triggers and target sector recommendations.

Cognitive & Emotional Perception

This color projects authority, intelligence, and calm dependability. Universally trusted across enterprise software and fintech products.

Optimal Industry Verticals

Fintech, Enterprise SaaS, Healthcare, Cloud Infrastructure. Combining Dark Olive Green with intentional neutral whitespace reinforces authority and conversion clarity.

Production Code Tokens for Dark Olive Green

Drop-in design system tokens for CSS, Tailwind CSS, and SCSS.

CSS Custom Properties (:root)Vanilla CSS

:root {
  --color-556b2f: #556B2F;
  --color-556b2f-rgb: 85, 107, 47;
  --color-556b2f-hsl: 82deg 39% 30%;
}

tailwind.config.jsTailwind CSS

module.exports = {
  theme: {
    extend: {
      colors: {
        '556b2f': '#556B2F',
      }
    }
  }
};

Explore Related Color Tools for Dark Olive Green

Continue developing your color system with specialized design tools.

Palette Generator

Generate harmonious 5-color palettes anchored to Dark Olive Green.

Launch Tool

WCAG Contrast Checker

Verify Level AA and AAA readability for Dark Olive Green against any background.

Check Contrast

Shades & Tints Scale

Generate a full 10-step tonal scale from 50 to 900 for Dark Olive Green.

Expand Scale

CSS Gradient Generator

Create linear and radial gradients blending Dark Olive Green with complementary hues.

Build Gradients

Frequently Asked Questions About Dark Olive Green (#556B2F)

Authoritative answers covering Dark Olive Green color codes, WCAG contrast compliance, and UI design systems.

What are the exact digital and print color codes for Dark Olive Green (#556B2F)?

Dark Olive Green is defined by the HEX code #556B2F. Its digital screen RGB coordinates are R:85, G:107, B:47. Its cylindrical HSL values are Hue:82°, Saturation:39%, Lightness:30%. In HSV/HSB format, it is 82°, 56%, 42%. For four-color CMYK process printing, its ink percentages are C:21%, M:0%, Y:56%, K:58%.

Does Dark Olive Green (#556B2F) pass WCAG 2.2 accessibility standards for text readability?

Against a pure white (#FFFFFF) background, Dark Olive Green achieves a contrast ratio of 5.95:1 (Passing WCAG AA for normal body text, and Passing for large headings). Against dark slate (#0F172A), it achieves a contrast ratio of 3.00:1 (Failing WCAG AA).

What is the direct complementary color for Dark Olive Green (#556B2F)?

The exact 180-degree optical complementary color for #556B2F is #452F6A. When placed side-by-side, #556B2F and #452F6A create maximum visual tension and high click-through conversion rates.

What is the recommended role for Dark Olive Green in the 60-30-10 UI design rule?

How can I copy and export Dark Olive Green into Tailwind CSS and CSS variables?

You can define Dark Olive Green in CSS custom properties as ':root { --color-custom: #556B2F; }' or paste it into your 'tailwind.config.js' file under 'theme.extend.colors'. You can also generate full palettes containing Dark Olive Green using our interactive Color Palette Generator.

Which color family does Dark Olive Green (#556B2F) belong to?

Dark Olive Green belongs to the Emerald Green family (Warm-Cool Hybrid (Vegetal / Lime) spectrum). You can explore full tonal ramps and curated palettes in our Emerald Green Color Guide.