Color #9EFFFF Color / Colour Code #9EFFFF
This page shows the hex color code for color #9effff (#9EFFFF). The colour is a cyan tone with 100% saturation and 81% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #9EFFFF against common backgrounds.
Complementary Colors
#9EFFFF paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 150, 180, and 210 degrees for harmonious combinations.
Triadic Palette
Three colors at 180, 300, and 60 degrees.
Color Palettes Using #9EFFFF
Five shades at lightness levels 15% through 85% while keeping hue at 180 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 180 to 225 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 180 with its complement at 0 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 #9EFFFF
Lightness variations at hue 180 and 100% saturation.
CSS Gradients with #9EFFFF
Design Use Cases for #9EFFFF
High-Impact Accent
With 100% saturation, #9EFFFF 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.
Light Background Tint
#9EFFFF at 81% lightness creates a gentle tinted background. Use it for section backgrounds, alert banners, or card surfaces that need to stand out from a white page without strong contrast. It adds color personality while keeping the design light and open.
Clarity & Technology
#9EFFFF is in the cyan spectrum (hue 180). 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 #9EFFFF (hue 180) to its complement at hue 0. For a subtler effect, try pairing with an analogous color at hue 210. Use CSS: background: linear-gradient(135deg, #9effff, #ff9e9e);
CSS Code for #9EFFFF
Similar Colors
Colors visually similar to #9EFFFF based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #9EFFFF across image editing and color design tools.
About Color #9EFFFF (#9EFFFF)
#9EFFFF is a cyan color (colour) with RGB channel values of 158 red, 255 green, and 255 blue. The green channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 180 degrees with 100% saturation and 81% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #9EFFFF is 226/255 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 38% cyan, 0% magenta, 0% yellow, and 0% key (black).
The WCAG contrast ratio of #9EFFFF against white is 1.15:1 and against black is 18.20:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 18.20:1, or use it exclusively for decorative purposes.
The complementary colour #FF9E9E creates maximum visual tension when paired with #9EFFFF. For more harmonious color combinations, use the analogous colours #9EFFCF and #9ECFFF, 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 #9EFFFF
- 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 #9EFFFF?
- #9EFFFF is Color #9EFFFF, a cyan color (colour) with RGB(158, 255, 255), HSL(180, 100%, 81%), and CMYK(38%, 0%, 0%, 0%). Its perceived brightness is 226/255.
- Is #9EFFFF accessible for text?
- Against white, #9EFFFF has a contrast ratio of 1.15:1 (fails AA for normal text). Against black, it has 18.20:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #9EFFFF?
- The complementary colour is #FF9E9E (hue 0). For subtle color combinations, use analogous colours #9EFFCF and #9ECFFF. The triadic palette adds #FF9EFF and #FFFF9E for vibrant variety.
- How do I use #9EFFFF in CSS?
- Use any format: color: #9effff; or rgb(158, 255, 255); or hsl(180, 100%, 81%). For CSS custom properties: --color-primary: 180 100% 81%; 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.