Color #451BBB Color / Colour Code #451BBB
This page shows the hex color code for color #451bbb (#451BBB). The colour is a purple tone with 75% saturation and 42% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #451BBB against common backgrounds.
Complementary Colors
#451BBB paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 226, 256, and 286 degrees for harmonious combinations.
Triadic Palette
Three colors at 256, 16, and 136 degrees.
Color Palettes Using #451BBB
Five shades at lightness levels 15% through 85% while keeping hue at 256 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 256 to 301 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 256 with its complement at 76 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 #451BBB
Lightness variations at hue 256 and 75% saturation.
CSS Gradients with #451BBB
Design Use Cases for #451BBB
Vibrant Brand Color
#451BBB 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.
Primary Interface Color
At 42% lightness, #451BBB is in the mid-range, making it ideal for interactive elements like buttons, links, and selected states. This lightness level ensures good contrast against both light and dark adjacent elements in most layouts.
Creativity & Premium Positioning
#451BBB falls in the purple spectrum (hue 256). 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 #451BBB (hue 256) to its complement at hue 76. For a subtler effect, try pairing with an analogous color at hue 286. Use CSS: background: linear-gradient(135deg, #451bbb, #91bb1b);
CSS Code for #451BBB
Similar Colors
Colors visually similar to #451BBB based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #451BBB across image editing and color design tools.
About Color #451BBB (#451BBB)
#451BBB is a purple color (colour) with RGB channel values of 69 red, 27 green, and 187 blue. The blue channel is dominant by a ratio of 6.9:1 over the weakest channel. In HSL terms, the hue sits at 256 degrees with 75% saturation and 42% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #451BBB is 58/255 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 63% cyan, 86% magenta, 0% yellow, and 27% key (black).
The WCAG contrast ratio of #451BBB against white is 9.87:1 and against black is 2.13:1. 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 #91BB1B creates maximum visual tension when paired with #451BBB. For more harmonious color combinations, use the analogous colours #1B40BB and #961BBB, 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 #451BBB
- 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 #451BBB?
- #451BBB is Color #451BBB, a purple color (colour) with RGB(69, 27, 187), HSL(256, 75%, 42%), and CMYK(63%, 86%, 0%, 27%). Its perceived brightness is 58/255.
- Is #451BBB accessible for text?
- Against white, #451BBB has a contrast ratio of 9.87:1 (passes AA for normal text). Against black, it has 2.13:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #451BBB?
- The complementary colour is #91BB1B (hue 76). For subtle color combinations, use analogous colours #1B40BB and #961BBB. The triadic palette adds #BB461B and #1BBB46 for vibrant variety.
- How do I use #451BBB in CSS?
- Use any format: color: #451bbb; or rgb(69, 27, 187); or hsl(256, 75%, 42%). For CSS custom properties: --color-primary: 256 75% 42%; 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.