Dark Green Color / Colour Code #1B4904
This page shows the hex color code for dark green (#1B4904). The colour is a green tone with 90% saturation and 15% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #1B4904 against common backgrounds.
Complementary Colors
#1B4904 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 70, 100, and 130 degrees for harmonious combinations.
Triadic Palette
Three colors at 100, 220, and 340 degrees.
Color Palettes Using #1B4904
Five shades at lightness levels 15% through 85% while keeping hue at 100 and saturation at 90%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 100 to 145 degrees create a warm, unified palette. This analogous scheme works for marketing materials, seasonal campaigns, and any design that needs visual warmth without clashing colors.
Combines the base color at hue 100 with its complement at 280 and two adjacent cool tones. This split-complementary approach provides strong visual contrast while remaining more balanced than a pure complementary scheme.
Five evenly spaced hues at 40% saturation and 80% lightness. Pastels are gentle on the eyes and work well for dashboards, onboarding screens, category tags, and any interface where multiple distinct colors are needed without visual aggression.
Shades & Tints of #1B4904
Lightness variations at hue 100 and 90% saturation.
CSS Gradients with #1B4904
Design Use Cases for #1B4904
High-Impact Accent
With 90% saturation, #1B4904 is highly vivid. Reserve this for elements that need maximum attention: primary action buttons, notification badges, error states, or promotional banners. Use sparingly alongside neutral tones to avoid visual fatigue.
Deep Accent & Text Color
#1B4904 at 15% lightness is dark enough for readable body text on light backgrounds while retaining its green character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Success & Growth Indicators
#1B4904 falls in the green range (hue 100). Green universally represents success, growth, and safety. Use it for confirmation messages, positive chart data, eco-friendly badges, and health metrics. In financial dashboards, green indicates gains and positive performance.
Gradient Pairing
Create a gradient from #1B4904 (hue 100) to its complement at hue 280. For a subtler effect, try pairing with an analogous color at hue 130. Use CSS: background: linear-gradient(135deg, #1b4904, #320449);
CSS Code for #1B4904
Similar Colors
Colors visually similar to #1B4904 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #1B4904 across image editing and color design tools.
About Dark Green (#1B4904)
#1B4904 is a green color (colour) with RGB channel values of 27 red, 73 green, and 4 blue. The green channel is dominant by a ratio of 18.3:1 over the weakest channel. In HSL terms, the hue sits at 100 degrees with 90% saturation and 15% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #1B4904 is 51/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This appears dark to the human eye, so pair it with light text for adequate readability. For print production, the CMYK equivalent is 63% cyan, 0% magenta, 95% yellow, and 71% key (black).
The WCAG contrast ratio of #1B4904 against white is 10.49:1 and against black is 2.00:1. This exceeds the AAA requirement (7:1) for normal text on white, making it excellent for body text and small UI labels on light backgrounds.
The complementary colour #320449 creates maximum visual tension when paired with #1B4904. For more harmonious color combinations, use the analogous colours #3D4904 and #04490F, which sit 30 degrees on either side of the hue wheel. To build a complete design system, start with the monochromatic scale above for consistent shade variations, then add one complementary or triadic accent for interactive elements.
How to Explore Color #1B4904
- Enter your color value in HEX format.
- The tool converts it to RGB, HSL, CMYK format in real time.
- Copy the converted value to your clipboard.
What is HEX to RGB, HSL, CMYK color conversion
Converting from HEX to RGB, HSL, CMYK translates a color value between two different color models. Different color models are used in web design (HEX, RGB), print (CMYK), and color theory (HSL, HSV).
Related Tools & Colors
Frequently Asked Questions
- What color / colour is #1B4904?
- #1B4904 is Dark Green, a green color (colour) with RGB(27, 73, 4), HSL(100, 90%, 15%), and CMYK(63%, 0%, 95%, 71%). Its perceived brightness is 51/255.
- Is #1B4904 accessible for text?
- Against white, #1B4904 has a contrast ratio of 10.49:1 (passes AA for normal text). Against black, it has 2.00:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #1B4904?
- The complementary colour is #320449 (hue 280). For subtle color combinations, use analogous colours #3D4904 and #04490F. The triadic palette adds #041B49 and #49041B for vibrant variety.
- How do I use #1B4904 in CSS?
- Use any format: color: #1b4904; or rgb(27, 73, 4); or hsl(100, 90%, 15%). For CSS custom properties: --color-primary: 100 90% 15%; then use it as hsl(var(--color-primary)).
- Is this color / colour explorer free?
- Yes, completely free with no signup required. All colour calculations run in your browser. You can explore any valid hex color code, not just the pre-generated palette.