Color #63FF63 Color / Colour Code #63FF63
This page shows the hex color code for color #63ff63 (#63FF63). The colour is a green tone with 100% saturation and 69% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #63FF63 against common backgrounds.
Complementary Colors
#63FF63 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 90, 120, and 150 degrees for harmonious combinations.
Triadic Palette
Three colors at 120, 240, and 0 degrees.
Color Palettes Using #63FF63
Five shades at lightness levels 15% through 85% while keeping hue at 120 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 120 to 165 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 120 with its complement at 300 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 #63FF63
Lightness variations at hue 120 and 100% saturation.
CSS Gradients with #63FF63
Design Use Cases for #63FF63
High-Impact Accent
With 100% saturation, #63FF63 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 69% lightness, #63FF63 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.
Success & Growth Indicators
#63FF63 falls in the green range (hue 120). Green universally represents success, growth, and safety. Use it for confirmation messages, positive chart data, eco-friendly badges, and health metrics. In financial dashboards, green indicates gains and positive performance.
Gradient Pairing
Create a gradient from #63FF63 (hue 120) to its complement at hue 300. For a subtler effect, try pairing with an analogous color at hue 150. Use CSS: background: linear-gradient(135deg, #63ff63, #ff61ff);
CSS Code for #63FF63
Similar Colors
Colors visually similar to #63FF63 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #63FF63 across image editing and color design tools.
About Color #63FF63 (#63FF63)
#63FF63 is a green color (colour) with RGB channel values of 99 red, 255 green, and 99 blue. The green channel is dominant by a ratio of 2.6:1 over the weakest channel. In HSL terms, the hue sits at 120 degrees with 100% saturation and 69% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #63FF63 is 191/255 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 61% cyan, 0% magenta, 61% yellow, and 0% key (black).
The WCAG contrast ratio of #63FF63 against white is 1.31:1 and against black is 16.01:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 16.01:1, or use it exclusively for decorative purposes.
The complementary colour #FF61FF creates maximum visual tension when paired with #63FF63. For more harmonious color combinations, use the analogous colours #B0FF61 and #61FFB0, 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 #63FF63
- 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 #63FF63?
- #63FF63 is Color #63FF63, a green color (colour) with RGB(99, 255, 99), HSL(120, 100%, 69%), and CMYK(61%, 0%, 61%, 0%). Its perceived brightness is 191/255.
- Is #63FF63 accessible for text?
- Against white, #63FF63 has a contrast ratio of 1.31:1 (fails AA for normal text). Against black, it has 16.01:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #63FF63?
- The complementary colour is #FF61FF (hue 300). For subtle color combinations, use analogous colours #B0FF61 and #61FFB0. The triadic palette adds #6161FF and #FF6161 for vibrant variety.
- How do I use #63FF63 in CSS?
- Use any format: color: #63ff63; or rgb(99, 255, 99); or hsl(120, 100%, 69%). For CSS custom properties: --color-primary: 120 100% 69%; 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.