Color #00EFCD Color / Colour Code #00EFCD
This page shows the hex color code for color #00efcd (#00EFCD). The colour is a cyan tone with 100% saturation and 47% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #00EFCD against common backgrounds.
Complementary Colors
#00EFCD paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 141, 171, and 201 degrees for harmonious combinations.
Triadic Palette
Three colors at 171, 291, and 51 degrees.
Color Palettes Using #00EFCD
Five shades at lightness levels 15% through 85% while keeping hue at 171 and saturation at 100%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 171 to 216 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 171 with its complement at 351 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 #00EFCD
Lightness variations at hue 171 and 100% saturation.
CSS Gradients with #00EFCD
Design Use Cases for #00EFCD
High-Impact Accent
With 100% saturation, #00EFCD 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 47% lightness, #00EFCD 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.
Clarity & Technology
#00EFCD is in the cyan spectrum (hue 171). 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 #00EFCD (hue 171) to its complement at hue 351. For a subtler effect, try pairing with an analogous color at hue 201. Use CSS: background: linear-gradient(135deg, #00efcd, #f00024);
CSS Code for #00EFCD
Similar Colors
Colors visually similar to #00EFCD based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #00EFCD across image editing and color design tools.
About Color #00EFCD (#00EFCD)
#00EFCD is a cyan color (colour) with RGB channel values of 0 red, 239 green, and 205 blue. The green channel is dominant by a ratio of 239.0:1 over the weakest channel. In HSL terms, the hue sits at 171 degrees with 100% saturation and 47% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #00EFCD is 164/255 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 100% cyan, 0% magenta, 14% yellow, and 6% key (black).
The WCAG contrast ratio of #00EFCD against white is 1.48:1 and against black is 14.23:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 14.23:1, or use it exclusively for decorative purposes.
The complementary colour #F00024 creates maximum visual tension when paired with #00EFCD. For more harmonious color combinations, use the analogous colours #00F054 and #009CF0, 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 #00EFCD
- 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 #00EFCD?
- #00EFCD is Color #00EFCD, a cyan color (colour) with RGB(0, 239, 205), HSL(171, 100%, 47%), and CMYK(100%, 0%, 14%, 6%). Its perceived brightness is 164/255.
- Is #00EFCD accessible for text?
- Against white, #00EFCD has a contrast ratio of 1.48:1 (fails AA for normal text). Against black, it has 14.23:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #00EFCD?
- The complementary colour is #F00024 (hue 351). For subtle color combinations, use analogous colours #00F054 and #009CF0. The triadic palette adds #CC00F0 and #F0CC00 for vibrant variety.
- How do I use #00EFCD in CSS?
- Use any format: color: #00efcd; or rgb(0, 239, 205); or hsl(171, 100%, 47%). For CSS custom properties: --color-primary: 171 100% 47%; 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.