Color #40D80E Color / Colour Code #40D80E
This page shows the hex color code for color #40d80e (#40D80E). The colour is a green tone with 88% saturation and 45% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #40D80E against common backgrounds.
Complementary Colors
#40D80E paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 75, 105, and 135 degrees for harmonious combinations.
Triadic Palette
Three colors at 105, 225, and 345 degrees.
Color Palettes Using #40D80E
Five shades at lightness levels 15% through 85% while keeping hue at 105 and saturation at 88%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 105 to 150 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 105 with its complement at 285 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 #40D80E
Lightness variations at hue 105 and 88% saturation.
CSS Gradients with #40D80E
Design Use Cases for #40D80E
High-Impact Accent
With 88% saturation, #40D80E 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.
Primary Interface Color
At 45% lightness, #40D80E is in the mid-range, making it ideal for interactive elements like buttons, links, and selected states. This lightness level ensures good contrast against both light and dark adjacent elements in most layouts.
Success & Growth Indicators
#40D80E falls in the green range (hue 105). 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 #40D80E (hue 105) to its complement at hue 285. For a subtler effect, try pairing with an analogous color at hue 135. Use CSS: background: linear-gradient(135deg, #40d80e, #a50ed8);
CSS Code for #40D80E
Similar Colors
Colors visually similar to #40D80E based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #40D80E across image editing and color design tools.
About Color #40D80E (#40D80E)
#40D80E is a green color (colour) with RGB channel values of 64 red, 216 green, and 14 blue. The green channel is dominant by a ratio of 15.4:1 over the weakest channel. In HSL terms, the hue sits at 105 degrees with 88% saturation and 45% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #40D80E is 148/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This is a medium-brightness color that can work with either dark or light text depending on font weight and size. For print production, the CMYK equivalent is 70% cyan, 0% magenta, 94% yellow, and 15% key (black).
The WCAG contrast ratio of #40D80E against white is 1.90:1 and against black is 11.05:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 11.05:1, or use it exclusively for decorative purposes.
The complementary colour #A50ED8 creates maximum visual tension when paired with #40D80E. For more harmonious color combinations, use the analogous colours #A5D80E and #0ED840, 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 #40D80E
- 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 #40D80E?
- #40D80E is Color #40D80E, a green color (colour) with RGB(64, 216, 14), HSL(105, 88%, 45%), and CMYK(70%, 0%, 94%, 15%). Its perceived brightness is 148/255.
- Is #40D80E accessible for text?
- Against white, #40D80E has a contrast ratio of 1.90:1 (fails AA for normal text). Against black, it has 11.05:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #40D80E?
- The complementary colour is #A50ED8 (hue 285). For subtle color combinations, use analogous colours #A5D80E and #0ED840. The triadic palette adds #0E40D8 and #D80E40 for vibrant variety.
- How do I use #40D80E in CSS?
- Use any format: color: #40d80e; or rgb(64, 216, 14); or hsl(105, 88%, 45%). For CSS custom properties: --color-primary: 105 88% 45%; 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.