Color #B133EA Color / Colour Code #B133EA
This page shows the hex color code for color #b133ea (#B133EA). The colour is a purple tone with 81% saturation and 56% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #B133EA against common backgrounds.
Complementary Colors
#B133EA paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 251, 281, and 311 degrees for harmonious combinations.
Triadic Palette
Three colors at 281, 41, and 161 degrees.
Color Palettes Using #B133EA
Five shades at lightness levels 15% through 85% while keeping hue at 281 and saturation at 81%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 281 to 326 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 281 with its complement at 101 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 #B133EA
Lightness variations at hue 281 and 81% saturation.
CSS Gradients with #B133EA
Design Use Cases for #B133EA
Vibrant Brand Color
#B133EA has a strong 81% 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 56% lightness, #B133EA 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
#B133EA falls in the purple spectrum (hue 281). 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 #B133EA (hue 281) to its complement at hue 101. For a subtler effect, try pairing with an analogous color at hue 311. Use CSS: background: linear-gradient(135deg, #b133ea, #6dea34);
CSS Code for #B133EA
Similar Colors
Colors visually similar to #B133EA based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #B133EA across image editing and color design tools.
About Color #B133EA (#B133EA)
#B133EA is a purple color (colour) with RGB channel values of 177 red, 51 green, and 234 blue. The blue channel is dominant by a ratio of 4.6:1 over the weakest channel. In HSL terms, the hue sits at 281 degrees with 81% saturation and 56% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #B133EA is 110/255 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 24% cyan, 78% magenta, 0% yellow, and 8% key (black).
The WCAG contrast ratio of #B133EA against white is 4.63:1 and against black is 4.53:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 39% lightness.
The complementary colour #6DEA34 creates maximum visual tension when paired with #B133EA. For more harmonious color combinations, use the analogous colours #5534EA and #EA34C8, 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 #B133EA
- 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 #B133EA?
- #B133EA is Color #B133EA, a purple color (colour) with RGB(177, 51, 234), HSL(281, 81%, 56%), and CMYK(24%, 78%, 0%, 8%). Its perceived brightness is 110/255.
- Is #B133EA accessible for text?
- Against white, #B133EA has a contrast ratio of 4.63:1 (passes AA for normal text). Against black, it has 4.53:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #B133EA?
- The complementary colour is #6DEA34 (hue 101). For subtle color combinations, use analogous colours #5534EA and #EA34C8. The triadic palette adds #EAB034 and #34EAB0 for vibrant variety.
- How do I use #B133EA in CSS?
- Use any format: color: #b133ea; or rgb(177, 51, 234); or hsl(281, 81%, 56%). For CSS custom properties: --color-primary: 281 81% 56%; 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.