Color #91F9DF Color / Colour Code #91F9DF
This page shows the hex color code for color #91f9df (#91F9DF). The colour is a cyan tone with 90% saturation and 77% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #91F9DF against common backgrounds.
Complementary Colors
#91F9DF paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 135, 165, and 195 degrees for harmonious combinations.
Triadic Palette
Three colors at 165, 285, and 45 degrees.
Color Palettes Using #91F9DF
Five shades at lightness levels 15% through 85% while keeping hue at 165 and saturation at 90%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 165 to 210 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 165 with its complement at 345 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 #91F9DF
Lightness variations at hue 165 and 90% saturation.
CSS Gradients with #91F9DF
Design Use Cases for #91F9DF
High-Impact Accent
With 90% saturation, #91F9DF 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
#91F9DF at 77% 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
#91F9DF is in the cyan spectrum (hue 165). 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 #91F9DF (hue 165) to its complement at hue 345. For a subtler effect, try pairing with an analogous color at hue 195. Use CSS: background: linear-gradient(135deg, #91f9df, #f990aa);
CSS Code for #91F9DF
Similar Colors
Colors visually similar to #91F9DF based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #91F9DF across image editing and color design tools.
About Color #91F9DF (#91F9DF)
#91F9DF is a cyan color (colour) with RGB channel values of 145 red, 249 green, and 223 blue. The green channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 165 degrees with 90% saturation and 77% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #91F9DF is 215/255 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 42% cyan, 0% magenta, 10% yellow, and 2% key (black).
The WCAG contrast ratio of #91F9DF against white is 1.25:1 and against black is 16.82:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 16.82:1, or use it exclusively for decorative purposes.
The complementary colour #F990AA creates maximum visual tension when paired with #91F9DF. For more harmonious color combinations, use the analogous colours #90F9AA and #90DFF9, 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 #91F9DF
- 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 #91F9DF?
- #91F9DF is Color #91F9DF, a cyan color (colour) with RGB(145, 249, 223), HSL(165, 90%, 77%), and CMYK(42%, 0%, 10%, 2%). Its perceived brightness is 215/255.
- Is #91F9DF accessible for text?
- Against white, #91F9DF has a contrast ratio of 1.25:1 (fails AA for normal text). Against black, it has 16.82:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #91F9DF?
- The complementary colour is #F990AA (hue 345). For subtle color combinations, use analogous colours #90F9AA and #90DFF9. The triadic palette adds #DF90F9 and #F9DF90 for vibrant variety.
- How do I use #91F9DF in CSS?
- Use any format: color: #91f9df; or rgb(145, 249, 223); or hsl(165, 90%, 77%). For CSS custom properties: --color-primary: 165 90% 77%; 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.