Color #40EC9F Color / Colour Code #40EC9F
This page shows the hex color code for color #40ec9f (#40EC9F). The colour is a cyan tone with 82% saturation and 59% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #40EC9F against common backgrounds.
Complementary Colors
#40EC9F paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 123, 153, and 183 degrees for harmonious combinations.
Triadic Palette
Three colors at 153, 273, and 33 degrees.
Color Palettes Using #40EC9F
Five shades at lightness levels 15% through 85% while keeping hue at 153 and saturation at 82%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 153 to 198 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 153 with its complement at 333 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 #40EC9F
Lightness variations at hue 153 and 82% saturation.
CSS Gradients with #40EC9F
Design Use Cases for #40EC9F
Vibrant Brand Color
#40EC9F has a strong 82% saturation that makes it ideal for brand identity elements. Use it for logos, primary call-to-action buttons, hero section accents, and marketing materials where visual impact matters. This saturation level is eye-catching without being harsh.
Soft Accent & Highlight
With 59% lightness, #40EC9F has a softer, more approachable quality. It works well for hover states, subtle highlights, progress indicators, and secondary UI elements. This lightness range is particularly effective for tag backgrounds and status indicators.
Clarity & Technology
#40EC9F is in the cyan spectrum (hue 153). Cyan evokes technology, clarity, and innovation. It works well for tech product interfaces, data visualization accents, loading indicators, and futuristic design themes. Cyan provides a modern alternative to traditional blues.
Gradient Pairing
Create a gradient from #40EC9F (hue 153) to its complement at hue 333. For a subtler effect, try pairing with an analogous color at hue 183. Use CSS: background: linear-gradient(135deg, #40ec9f, #ec418e);
CSS Code for #40EC9F
Similar Colors
Colors visually similar to #40EC9F based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #40EC9F across image editing and color design tools.
About Color #40EC9F (#40EC9F)
#40EC9F is a cyan color (colour) with RGB channel values of 64 red, 236 green, and 159 blue. The green channel is dominant by a ratio of 3.7:1 over the weakest channel. In HSL terms, the hue sits at 153 degrees with 82% saturation and 59% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #40EC9F is 176/255 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 73% cyan, 0% magenta, 33% yellow, and 7% key (black).
The WCAG contrast ratio of #40EC9F against white is 1.53:1 and against black is 13.72:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 13.72:1, or use it exclusively for decorative purposes.
The complementary colour #EC418E creates maximum visual tension when paired with #40EC9F. For more harmonious color combinations, use the analogous colours #41EC49 and #41E4EC, 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 #40EC9F
- 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 #40EC9F?
- #40EC9F is Color #40EC9F, a cyan color (colour) with RGB(64, 236, 159), HSL(153, 82%, 59%), and CMYK(73%, 0%, 33%, 7%). Its perceived brightness is 176/255.
- Is #40EC9F accessible for text?
- Against white, #40EC9F has a contrast ratio of 1.53:1 (fails AA for normal text). Against black, it has 13.72:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #40EC9F?
- The complementary colour is #EC418E (hue 333). For subtle color combinations, use analogous colours #41EC49 and #41E4EC. The triadic palette adds #9F41EC and #EC9F41 for vibrant variety.
- How do I use #40EC9F in CSS?
- Use any format: color: #40ec9f; or rgb(64, 236, 159); or hsl(153, 82%, 59%). For CSS custom properties: --color-primary: 153 82% 59%; 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.