Color #511EE5 Color / Colour Code #511EE5
This page shows the hex color code for color #511ee5 (#511EE5). The colour is a purple tone with 79% saturation and 51% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #511EE5 against common backgrounds.
Complementary Colors
#511EE5 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 225, 255, and 285 degrees for harmonious combinations.
Triadic Palette
Three colors at 255, 15, and 135 degrees.
Color Palettes Using #511EE5
Five shades at lightness levels 15% through 85% while keeping hue at 255 and saturation at 79%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 255 to 300 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 255 with its complement at 75 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 #511EE5
Lightness variations at hue 255 and 79% saturation.
CSS Gradients with #511EE5
Design Use Cases for #511EE5
Vibrant Brand Color
#511EE5 has a strong 79% 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 51% lightness, #511EE5 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.
Creativity & Premium Positioning
#511EE5 falls in the purple spectrum (hue 255). Purple communicates creativity, wisdom, and luxury. It is effective for premium product highlights, creative portfolio accents, meditation app interfaces, and rewards program branding. Purple occupies a unique space between the energy of red and the calm of blue.
Gradient Pairing
Create a gradient from #511EE5 (hue 255) to its complement at hue 75. For a subtler effect, try pairing with an analogous color at hue 285. Use CSS: background: linear-gradient(135deg, #511ee5, #b3e51f);
CSS Code for #511EE5
Similar Colors
Colors visually similar to #511EE5 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #511EE5 across image editing and color design tools.
About Color #511EE5 (#511EE5)
#511EE5 is a purple color (colour) with RGB channel values of 81 red, 30 green, and 229 blue. The blue channel is dominant by a ratio of 7.6:1 over the weakest channel. In HSL terms, the hue sits at 255 degrees with 79% saturation and 51% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #511EE5 is 68/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This appears dark to the human eye, so pair it with light text for adequate readability. For print production, the CMYK equivalent is 65% cyan, 87% magenta, 0% yellow, and 10% key (black).
The WCAG contrast ratio of #511EE5 against white is 7.87:1 and against black is 2.67:1. This exceeds the AAA requirement (7:1) for normal text on white, making it excellent for body text and small UI labels on light backgrounds.
The complementary colour #B3E51F creates maximum visual tension when paired with #511EE5. For more harmonious color combinations, use the analogous colours #1F51E5 and #B31FE5, 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 #511EE5
- 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 #511EE5?
- #511EE5 is Color #511EE5, a purple color (colour) with RGB(81, 30, 229), HSL(255, 79%, 51%), and CMYK(65%, 87%, 0%, 10%). Its perceived brightness is 68/255.
- Is #511EE5 accessible for text?
- Against white, #511EE5 has a contrast ratio of 7.87:1 (passes AA for normal text). Against black, it has 2.67:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #511EE5?
- The complementary colour is #B3E51F (hue 75). For subtle color combinations, use analogous colours #1F51E5 and #B31FE5. The triadic palette adds #E5511F and #1FE551 for vibrant variety.
- How do I use #511EE5 in CSS?
- Use any format: color: #511ee5; or rgb(81, 30, 229); or hsl(255, 79%, 51%). For CSS custom properties: --color-primary: 255 79% 51%; 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.