Color #42FFDA Color / Colour Code #42FFDA
This page shows the hex color code for color #42ffda (#42FFDA). The colour is a cyan tone with 100% saturation and 63% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #42FFDA against common backgrounds.
Complementary Colors
#42FFDA paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 138, 168, and 198 degrees for harmonious combinations.
Triadic Palette
Three colors at 168, 288, and 48 degrees.
Color Palettes Using #42FFDA
Five shades at lightness levels 15% through 85% while keeping hue at 168 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 168 to 213 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 168 with its complement at 348 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 #42FFDA
Lightness variations at hue 168 and 100% saturation.
CSS Gradients with #42FFDA
Design Use Cases for #42FFDA
High-Impact Accent
With 100% saturation, #42FFDA 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 63% lightness, #42FFDA 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
#42FFDA is in the cyan spectrum (hue 168). 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 #42FFDA (hue 168) to its complement at hue 348. For a subtler effect, try pairing with an analogous color at hue 198. Use CSS: background: linear-gradient(135deg, #42ffda, #ff4268);
CSS Code for #42FFDA
Similar Colors
Colors visually similar to #42FFDA based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #42FFDA across image editing and color design tools.
About Color #42FFDA (#42FFDA)
#42FFDA is a cyan color (colour) with RGB channel values of 66 red, 255 green, and 218 blue. The green channel is dominant by a ratio of 3.9:1 over the weakest channel. In HSL terms, the hue sits at 168 degrees with 100% saturation and 63% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #42FFDA is 194/255 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 74% cyan, 0% magenta, 15% yellow, and 0% key (black).
The WCAG contrast ratio of #42FFDA against white is 1.27:1 and against black is 16.55:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 16.55:1, or use it exclusively for decorative purposes.
The complementary colour #FF4268 creates maximum visual tension when paired with #42FFDA. For more harmonious color combinations, use the analogous colours #42FF7B and #42C6FF, 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 #42FFDA
- 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 #42FFDA?
- #42FFDA is Color #42FFDA, a cyan color (colour) with RGB(66, 255, 218), HSL(168, 100%, 63%), and CMYK(74%, 0%, 15%, 0%). Its perceived brightness is 194/255.
- Is #42FFDA accessible for text?
- Against white, #42FFDA has a contrast ratio of 1.27:1 (fails AA for normal text). Against black, it has 16.55:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #42FFDA?
- The complementary colour is #FF4268 (hue 348). For subtle color combinations, use analogous colours #42FF7B and #42C6FF. The triadic palette adds #D942FF and #FFD942 for vibrant variety.
- How do I use #42FFDA in CSS?
- Use any format: color: #42ffda; or rgb(66, 255, 218); or hsl(168, 100%, 63%). For CSS custom properties: --color-primary: 168 100% 63%; 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.