Light Cyan Color / Colour Code #63E9E9
This page shows the hex color code for light cyan (#63E9E9). The colour is a cyan tone with 75% saturation and 65% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #63E9E9 against common backgrounds.
Complementary Colors
#63E9E9 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 #63E9E9
Five shades at lightness levels 15% through 85% while keeping hue at 180 and saturation at 75%. 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 #63E9E9
Lightness variations at hue 180 and 75% saturation.
CSS Gradients with #63E9E9
Design Use Cases for #63E9E9
Vibrant Brand Color
#63E9E9 has a strong 75% saturation that makes it ideal for brand identity elements. Use it for logos, primary call-to-action buttons, hero section accents, and marketing materials where visual impact matters. This saturation level is eye-catching without being harsh.
Soft Accent & Highlight
With 65% lightness, #63E9E9 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
#63E9E9 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 #63E9E9 (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, #63e9e9, #e96363);
CSS Code for #63E9E9
Similar Colors
Colors visually similar to #63E9E9 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #63E9E9 across image editing and color design tools.
About Light Cyan (#63E9E9)
#63E9E9 is a cyan color (colour) with RGB channel values of 99 red, 233 green, and 233 blue. The green channel is dominant by a ratio of 2.4:1 over the weakest channel. In HSL terms, the hue sits at 180 degrees with 75% saturation and 65% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #63E9E9 is 193/255 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 58% cyan, 0% magenta, 0% yellow, and 9% key (black).
The WCAG contrast ratio of #63E9E9 against white is 1.46:1 and against black is 14.36:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 14.36:1, or use it exclusively for decorative purposes.
The complementary colour #E96363 creates maximum visual tension when paired with #63E9E9. For more harmonious color combinations, use the analogous colours #63E9A6 and #63A6E9, 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 #63E9E9
- 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 #63E9E9?
- #63E9E9 is Light Cyan, a cyan color (colour) with RGB(99, 233, 233), HSL(180, 75%, 65%), and CMYK(58%, 0%, 0%, 9%). Its perceived brightness is 193/255.
- Is #63E9E9 accessible for text?
- Against white, #63E9E9 has a contrast ratio of 1.46:1 (fails AA for normal text). Against black, it has 14.36:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #63E9E9?
- The complementary colour is #E96363 (hue 0). For subtle color combinations, use analogous colours #63E9A6 and #63A6E9. The triadic palette adds #E963E9 and #E9E963 for vibrant variety.
- How do I use #63E9E9 in CSS?
- Use any format: color: #63e9e9; or rgb(99, 233, 233); or hsl(180, 75%, 65%). For CSS custom properties: --color-primary: 180 75% 65%; 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.