Cyan Color / Colour Code #40BF80
This page shows the hex color code for cyan (#40BF80). The colour is a cyan tone with 50% saturation and 50% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #40BF80 against common backgrounds.
Complementary Colors
#40BF80 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 120, 150, and 180 degrees for harmonious combinations.
Triadic Palette
Three colors at 150, 270, and 30 degrees.
Color Palettes Using #40BF80
Five shades at lightness levels 15% through 85% while keeping hue at 150 and saturation at 50%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 150 to 195 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 150 with its complement at 330 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 #40BF80
Lightness variations at hue 150 and 50% saturation.
CSS Gradients with #40BF80
Design Use Cases for #40BF80
Balanced UI Color
At 50% saturation, #40BF80 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 50% lightness, #40BF80 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
#40BF80 is in the cyan spectrum (hue 150). 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 #40BF80 (hue 150) to its complement at hue 330. For a subtler effect, try pairing with an analogous color at hue 180. Use CSS: background: linear-gradient(135deg, #40bf80, #bf4080);
CSS Code for #40BF80
Similar Colors
Colors visually similar to #40BF80 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #40BF80 across image editing and color design tools.
About Cyan (#40BF80)
#40BF80 is a cyan color (colour) with RGB channel values of 64 red, 191 green, and 128 blue. The green channel is dominant by a ratio of 3.0:1 over the weakest channel. In HSL terms, the hue sits at 150 degrees with 50% saturation and 50% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #40BF80 is 146/255 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 66% cyan, 0% magenta, 33% yellow, and 25% key (black).
The WCAG contrast ratio of #40BF80 against white is 2.34:1 and against black is 8.98:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 8.98:1, or use it exclusively for decorative purposes.
The complementary colour #BF4080 creates maximum visual tension when paired with #40BF80. For more harmonious color combinations, use the analogous colours #40BF40 and #40BFBF, 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 #40BF80
- 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 #40BF80?
- #40BF80 is Cyan, a cyan color (colour) with RGB(64, 191, 128), HSL(150, 50%, 50%), and CMYK(66%, 0%, 33%, 25%). Its perceived brightness is 146/255.
- Is #40BF80 accessible for text?
- Against white, #40BF80 has a contrast ratio of 2.34:1 (fails AA for normal text). Against black, it has 8.98:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #40BF80?
- The complementary colour is #BF4080 (hue 330). For subtle color combinations, use analogous colours #40BF40 and #40BFBF. The triadic palette adds #7F40BF and #BF8040 for vibrant variety.
- How do I use #40BF80 in CSS?
- Use any format: color: #40bf80; or rgb(64, 191, 128); or hsl(150, 50%, 50%). For CSS custom properties: --color-primary: 150 50% 50%; 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.