Color #03391D Color / Colour Code #03391D
This page shows the hex color code for color #03391d (#03391D). The colour is a green tone with 90% saturation and 12% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #03391D against common backgrounds.
Complementary Colors
#03391D paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 119, 149, and 179 degrees for harmonious combinations.
Triadic Palette
Three colors at 149, 269, and 29 degrees.
Color Palettes Using #03391D
Five shades at lightness levels 15% through 85% while keeping hue at 149 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 149 to 194 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 149 with its complement at 329 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 #03391D
Lightness variations at hue 149 and 90% saturation.
CSS Gradients with #03391D
Design Use Cases for #03391D
High-Impact Accent
With 90% saturation, #03391D 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.
Dark Mode Background
At just 12% lightness, #03391D works as a dark mode background or overlay color. Dark backgrounds reduce eye strain in low-light environments and make bright accent colors pop. Pair with light text (minimum 4.5:1 contrast ratio) for readability.
Success & Growth Indicators
#03391D falls in the green range (hue 149). 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 #03391D (hue 149) to its complement at hue 329. For a subtler effect, try pairing with an analogous color at hue 179. Use CSS: background: linear-gradient(135deg, #03391d, #3a0320);
CSS Code for #03391D
Similar Colors
Colors visually similar to #03391D based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #03391D across image editing and color design tools.
About Color #03391D (#03391D)
#03391D is a green color (colour) with RGB channel values of 3 red, 57 green, and 29 blue. The green channel is dominant by a ratio of 19.0:1 over the weakest channel. In HSL terms, the hue sits at 149 degrees with 90% saturation and 12% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #03391D is 38/255 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 95% cyan, 0% magenta, 49% yellow, and 78% key (black).
The WCAG contrast ratio of #03391D against white is 13.07:1 and against black is 1.61:1. 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 #3A0320 creates maximum visual tension when paired with #03391D. For more harmonious color combinations, use the analogous colours #043A03 and #033A39, 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 #03391D
- 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 #03391D?
- #03391D is Color #03391D, a green color (colour) with RGB(3, 57, 29), HSL(149, 90%, 12%), and CMYK(95%, 0%, 49%, 78%). Its perceived brightness is 38/255.
- Is #03391D accessible for text?
- Against white, #03391D has a contrast ratio of 13.07:1 (passes AA for normal text). Against black, it has 1.61:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #03391D?
- The complementary colour is #3A0320 (hue 329). For subtle color combinations, use analogous colours #043A03 and #033A39. The triadic palette adds #1E033A and #3A1E03 for vibrant variety.
- How do I use #03391D in CSS?
- Use any format: color: #03391d; or rgb(3, 57, 29); or hsl(149, 90%, 12%). For CSS custom properties: --color-primary: 149 90% 12%; 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.