Color #28FFDB Color / Colour Code #28FFDB
This page shows the hex color code for color #28ffdb (#28FFDB). The colour is a cyan tone with 100% saturation and 58% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #28FFDB against common backgrounds.
Complementary Colors
#28FFDB paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 140, 170, and 200 degrees for harmonious combinations.
Triadic Palette
Three colors at 170, 290, and 50 degrees.
Color Palettes Using #28FFDB
Five shades at lightness levels 15% through 85% while keeping hue at 170 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 170 to 215 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 170 with its complement at 350 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 #28FFDB
Lightness variations at hue 170 and 100% saturation.
CSS Gradients with #28FFDB
Design Use Cases for #28FFDB
High-Impact Accent
With 100% saturation, #28FFDB 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 58% lightness, #28FFDB 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
#28FFDB is in the cyan spectrum (hue 170). 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 #28FFDB (hue 170) to its complement at hue 350. For a subtler effect, try pairing with an analogous color at hue 200. Use CSS: background: linear-gradient(135deg, #28ffdb, #ff294d);
CSS Code for #28FFDB
Similar Colors
Colors visually similar to #28FFDB based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #28FFDB across image editing and color design tools.
About Color #28FFDB (#28FFDB)
#28FFDB is a cyan color (colour) with RGB channel values of 40 red, 255 green, and 219 blue. The green channel is dominant by a ratio of 6.4:1 over the weakest channel. In HSL terms, the hue sits at 170 degrees with 100% saturation and 58% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #28FFDB is 187/255 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 84% cyan, 0% magenta, 14% yellow, and 0% key (black).
The WCAG contrast ratio of #28FFDB against white is 1.28:1 and against black is 16.42:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 16.42:1, or use it exclusively for decorative purposes.
The complementary colour #FF294D creates maximum visual tension when paired with #28FFDB. For more harmonious color combinations, use the analogous colours #29FF70 and #29B8FF, 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 #28FFDB
- 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 #28FFDB?
- #28FFDB is Color #28FFDB, a cyan color (colour) with RGB(40, 255, 219), HSL(170, 100%, 58%), and CMYK(84%, 0%, 14%, 0%). Its perceived brightness is 187/255.
- Is #28FFDB accessible for text?
- Against white, #28FFDB has a contrast ratio of 1.28:1 (fails AA for normal text). Against black, it has 16.42:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #28FFDB?
- The complementary colour is #FF294D (hue 350). For subtle color combinations, use analogous colours #29FF70 and #29B8FF. The triadic palette adds #DB29FF and #FFDB29 for vibrant variety.
- How do I use #28FFDB in CSS?
- Use any format: color: #28ffdb; or rgb(40, 255, 219); or hsl(170, 100%, 58%). For CSS custom properties: --color-primary: 170 100% 58%; 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.