Color #CEFC40 Color / Colour Code #CEFC40
This page shows the hex color code for color #cefc40 (#CEFC40). The colour is a green tone with 97% saturation and 62% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #CEFC40 against common backgrounds.
Complementary Colors
#CEFC40 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 45, 75, and 105 degrees for harmonious combinations.
Triadic Palette
Three colors at 75, 195, and 315 degrees.
Color Palettes Using #CEFC40
Five shades at lightness levels 15% through 85% while keeping hue at 75 and saturation at 97%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 75 to 120 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 75 with its complement at 255 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 #CEFC40
Lightness variations at hue 75 and 97% saturation.
CSS Gradients with #CEFC40
Design Use Cases for #CEFC40
High-Impact Accent
With 97% saturation, #CEFC40 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.
Soft Accent & Highlight
With 62% lightness, #CEFC40 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
#CEFC40 falls in the green range (hue 75). 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 #CEFC40 (hue 75) to its complement at hue 255. For a subtler effect, try pairing with an analogous color at hue 105. Use CSS: background: linear-gradient(135deg, #cefc40, #6f40fc);
CSS Code for #CEFC40
Similar Colors
Colors visually similar to #CEFC40 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #CEFC40 across image editing and color design tools.
About Color #CEFC40 (#CEFC40)
#CEFC40 is a green color (colour) with RGB channel values of 206 red, 252 green, and 64 blue. The green channel is dominant by a ratio of 3.9:1 over the weakest channel. In HSL terms, the hue sits at 75 degrees with 97% saturation and 62% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #CEFC40 is 217/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This means it appears bright to the human eye and is best paired with dark text for readability. For print production, the CMYK equivalent is 18% cyan, 0% magenta, 75% yellow, and 1% key (black).
The WCAG contrast ratio of #CEFC40 against white is 1.19:1 and against black is 17.62:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 17.62:1, or use it exclusively for decorative purposes.
The complementary colour #6F40FC creates maximum visual tension when paired with #CEFC40. For more harmonious color combinations, use the analogous colours #FCCD40 and #6FFC40, 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 #CEFC40
- 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 #CEFC40?
- #CEFC40 is Color #CEFC40, a green color (colour) with RGB(206, 252, 64), HSL(75, 97%, 62%), and CMYK(18%, 0%, 75%, 1%). Its perceived brightness is 217/255.
- Is #CEFC40 accessible for text?
- Against white, #CEFC40 has a contrast ratio of 1.19:1 (fails AA for normal text). Against black, it has 17.62:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #CEFC40?
- The complementary colour is #6F40FC (hue 255). For subtle color combinations, use analogous colours #FCCD40 and #6FFC40. The triadic palette adds #40CDFC and #FC40CD for vibrant variety.
- How do I use #CEFC40 in CSS?
- Use any format: color: #cefc40; or rgb(206, 252, 64); or hsl(75, 97%, 62%). For CSS custom properties: --color-primary: 75 97% 62%; 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.