Color #B52011 Color / Colour Code #B52011
This page shows the hex color code for color #b52011 (#B52011). The colour is a red tone with 83% saturation and 39% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #B52011 against common backgrounds.
Complementary Colors
#B52011 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 335, 5, and 35 degrees for harmonious combinations.
Triadic Palette
Three colors at 5, 125, and 245 degrees.
Color Palettes Using #B52011
Five shades at lightness levels 15% through 85% while keeping hue at 5 and saturation at 83%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 5 to 50 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 5 with its complement at 185 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 #B52011
Lightness variations at hue 5 and 83% saturation.
CSS Gradients with #B52011
Design Use Cases for #B52011
Vibrant Brand Color
#B52011 has a strong 83% 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 39% lightness, #B52011 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.
Urgency & Energy Signaling
#B52011 falls in the red spectrum (hue 5). Red triggers urgency and excitement, making it effective for sale badges, countdown timers, error messages, and "limited time" labels. In data visualization, use it to flag negative values or critical thresholds.
Gradient Pairing
Create a gradient from #B52011 (hue 5) to its complement at hue 185. For a subtler effect, try pairing with an analogous color at hue 35. Use CSS: background: linear-gradient(135deg, #b52011, #11a8b6);
CSS Code for #B52011
Similar Colors
Colors visually similar to #B52011 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #B52011 across image editing and color design tools.
About Color #B52011 (#B52011)
#B52011 is a red color (colour) with RGB channel values of 181 red, 32 green, and 17 blue. The red channel is dominant by a ratio of 10.6:1 over the weakest channel. In HSL terms, the hue sits at 5 degrees with 83% saturation and 39% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #B52011 is 75/255 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 0% cyan, 82% magenta, 91% yellow, and 29% key (black).
The WCAG contrast ratio of #B52011 against white is 6.60:1 and against black is 3.18:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 27% lightness.
The complementary colour #11A8B6 creates maximum visual tension when paired with #B52011. For more harmonious color combinations, use the analogous colours #B61156 and #B67111, 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 #B52011
- 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 #B52011?
- #B52011 is Color #B52011, a red color (colour) with RGB(181, 32, 17), HSL(5, 83%, 39%), and CMYK(0%, 82%, 91%, 29%). Its perceived brightness is 75/255.
- Is #B52011 accessible for text?
- Against white, #B52011 has a contrast ratio of 6.60:1 (passes AA for normal text). Against black, it has 3.18:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #B52011?
- The complementary colour is #11A8B6 (hue 185). For subtle color combinations, use analogous colours #B61156 and #B67111. The triadic palette adds #11B61F and #1F11B6 for vibrant variety.
- How do I use #B52011 in CSS?
- Use any format: color: #b52011; or rgb(181, 32, 17); or hsl(5, 83%, 39%). For CSS custom properties: --color-primary: 5 83% 39%; 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.