Color #40C55E Color / Colour Code #40C55E
This page shows the hex color code for color #40c55e (#40C55E). The colour is a green tone with 53% saturation and 51% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #40C55E against common backgrounds.
Complementary Colors
#40C55E paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 104, 134, and 164 degrees for harmonious combinations.
Triadic Palette
Three colors at 134, 254, and 14 degrees.
Color Palettes Using #40C55E
Five shades at lightness levels 15% through 85% while keeping hue at 134 and saturation at 53%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 134 to 179 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 134 with its complement at 314 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 #40C55E
Lightness variations at hue 134 and 53% saturation.
CSS Gradients with #40C55E
Design Use Cases for #40C55E
Balanced UI Color
At 53% saturation, #40C55E strikes a balance between vibrancy and restraint. This makes it versatile for primary UI elements like navigation bars, card headers, and form accents. It draws attention without overwhelming adjacent content.
Soft Accent & Highlight
With 51% lightness, #40C55E 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.
Success & Growth Indicators
#40C55E falls in the green range (hue 134). 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 #40C55E (hue 134) to its complement at hue 314. For a subtler effect, try pairing with an analogous color at hue 164. Use CSS: background: linear-gradient(135deg, #40c55e, #c440a5);
CSS Code for #40C55E
Similar Colors
Colors visually similar to #40C55E based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #40C55E across image editing and color design tools.
About Color #40C55E (#40C55E)
#40C55E is a green color (colour) with RGB channel values of 64 red, 197 green, and 94 blue. The green channel is dominant by a ratio of 3.1:1 over the weakest channel. In HSL terms, the hue sits at 134 degrees with 53% saturation and 51% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #40C55E is 145/255 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 68% cyan, 0% magenta, 52% yellow, and 23% key (black).
The WCAG contrast ratio of #40C55E against white is 2.24:1 and against black is 9.37:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 9.37:1, or use it exclusively for decorative purposes.
The complementary colour #C440A5 creates maximum visual tension when paired with #40C55E. For more harmonious color combinations, use the analogous colours #63C440 and #40C4A1, 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 #40C55E
- 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 #40C55E?
- #40C55E is Color #40C55E, a green color (colour) with RGB(64, 197, 94), HSL(134, 53%, 51%), and CMYK(68%, 0%, 52%, 23%). Its perceived brightness is 145/255.
- Is #40C55E accessible for text?
- Against white, #40C55E has a contrast ratio of 2.24:1 (fails AA for normal text). Against black, it has 9.37:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #40C55E?
- The complementary colour is #C440A5 (hue 314). For subtle color combinations, use analogous colours #63C440 and #40C4A1. The triadic palette adds #5F40C4 and #C45F40 for vibrant variety.
- How do I use #40C55E in CSS?
- Use any format: color: #40c55e; or rgb(64, 197, 94); or hsl(134, 53%, 51%). For CSS custom properties: --color-primary: 134 53% 51%; 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.