Color #40AE09 Color / Colour Code #40AE09
This page shows the hex color code for color #40ae09 (#40AE09). The colour is a green tone with 90% saturation and 36% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #40AE09 against common backgrounds.
Complementary Colors
#40AE09 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 #40AE09
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 #40AE09
Lightness variations at hue 100 and 90% saturation.
CSS Gradients with #40AE09
Design Use Cases for #40AE09
High-Impact Accent
With 90% saturation, #40AE09 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 36% lightness, #40AE09 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
#40AE09 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 #40AE09 (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, #40ae09, #7709ae);
CSS Code for #40AE09
Similar Colors
Colors visually similar to #40AE09 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #40AE09 across image editing and color design tools.
About Color #40AE09 (#40AE09)
#40AE09 is a green color (colour) with RGB channel values of 64 red, 174 green, and 9 blue. The green channel is dominant by a ratio of 19.3:1 over the weakest channel. In HSL terms, the hue sits at 100 degrees with 90% saturation and 36% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #40AE09 is 122/255 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 32% key (black).
The WCAG contrast ratio of #40AE09 against white is 2.89:1 and against black is 7.28:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 7.28:1, or use it exclusively for decorative purposes.
The complementary colour #7709AE creates maximum visual tension when paired with #40AE09. For more harmonious color combinations, use the analogous colours #93AE09 and #09AE25, 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 #40AE09
- 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 #40AE09?
- #40AE09 is Color #40AE09, a green color (colour) with RGB(64, 174, 9), HSL(100, 90%, 36%), and CMYK(63%, 0%, 95%, 32%). Its perceived brightness is 122/255.
- Is #40AE09 accessible for text?
- Against white, #40AE09 has a contrast ratio of 2.89:1 (fails AA for normal text). Against black, it has 7.28:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #40AE09?
- The complementary colour is #7709AE (hue 280). For subtle color combinations, use analogous colours #93AE09 and #09AE25. The triadic palette adds #0940AE and #AE0940 for vibrant variety.
- How do I use #40AE09 in CSS?
- Use any format: color: #40ae09; or rgb(64, 174, 9); or hsl(100, 90%, 36%). For CSS custom properties: --color-primary: 100 90% 36%; 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.