Color #BB1637 Color / Colour Code #BB1637
This page shows the hex color code for color #bb1637 (#BB1637). The colour is a red tone with 79% saturation and 41% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #BB1637 against common backgrounds.
Complementary Colors
#BB1637 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 318, 348, and 18 degrees for harmonious combinations.
Triadic Palette
Three colors at 348, 108, and 228 degrees.
Color Palettes Using #BB1637
Five shades at lightness levels 15% through 85% while keeping hue at 348 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 348 to 33 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 348 with its complement at 168 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 #BB1637
Lightness variations at hue 348 and 79% saturation.
CSS Gradients with #BB1637
Design Use Cases for #BB1637
Vibrant Brand Color
#BB1637 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.
Primary Interface Color
At 41% lightness, #BB1637 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
#BB1637 falls in the red spectrum (hue 348). 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 #BB1637 (hue 348) to its complement at hue 168. For a subtler effect, try pairing with an analogous color at hue 18. Use CSS: background: linear-gradient(135deg, #bb1637, #16bb9a);
CSS Code for #BB1637
Similar Colors
Colors visually similar to #BB1637 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #BB1637 across image editing and color design tools.
About Color #BB1637 (#BB1637)
#BB1637 is a red color (colour) with RGB channel values of 187 red, 22 green, and 55 blue. The red channel is dominant by a ratio of 8.5:1 over the weakest channel. In HSL terms, the hue sits at 348 degrees with 79% saturation and 41% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #BB1637 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, 88% magenta, 71% yellow, and 27% key (black).
The WCAG contrast ratio of #BB1637 against white is 6.40:1 and against black is 3.28:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 29% lightness.
The complementary colour #16BB9A creates maximum visual tension when paired with #BB1637. For more harmonious color combinations, use the analogous colours #BB168A and #BB4816, 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 #BB1637
- 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 #BB1637?
- #BB1637 is Color #BB1637, a red color (colour) with RGB(187, 22, 55), HSL(348, 79%, 41%), and CMYK(0%, 88%, 71%, 27%). Its perceived brightness is 75/255.
- Is #BB1637 accessible for text?
- Against white, #BB1637 has a contrast ratio of 6.40:1 (passes AA for normal text). Against black, it has 3.28:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #BB1637?
- The complementary colour is #16BB9A (hue 168). For subtle color combinations, use analogous colours #BB168A and #BB4816. The triadic palette adds #37BB16 and #1637BB for vibrant variety.
- How do I use #BB1637 in CSS?
- Use any format: color: #bb1637; or rgb(187, 22, 55); or hsl(348, 79%, 41%). For CSS custom properties: --color-primary: 348 79% 41%; 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.