Color #331F1D Color / Colour Code #331F1D
This page shows the hex color code for color #331f1d (#331F1D). The colour is a red tone with 28% saturation and 16% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #331F1D against common backgrounds.
Complementary Colors
#331F1D 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 #331F1D
Five shades at lightness levels 15% through 85% while keeping hue at 5 and saturation at 28%. 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 #331F1D
Lightness variations at hue 5 and 28% saturation.
CSS Gradients with #331F1D
Design Use Cases for #331F1D
Muted Accent Color
With 28% saturation, #331F1D has a subtle, sophisticated quality. This level of desaturation works well for secondary buttons, inactive states, subtle borders, and backgrounds that need a hint of color without being distracting. Muted colors communicate restraint and professionalism.
Deep Accent & Text Color
#331F1D at 16% lightness is dark enough for readable body text on light backgrounds while retaining its red character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Urgency & Energy Signaling
#331F1D 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 #331F1D (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, #331f1d, #1d3234);
CSS Code for #331F1D
Similar Colors
Colors visually similar to #331F1D based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #331F1D across image editing and color design tools.
About Color #331F1D (#331F1D)
#331F1D is a red color (colour) with RGB channel values of 51 red, 31 green, and 29 blue. The red channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 5 degrees with 28% saturation and 16% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #331F1D is 37/255 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, 39% magenta, 43% yellow, and 80% key (black).
The WCAG contrast ratio of #331F1D against white is 15.50:1 and against black is 1.35:1. 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 #1D3234 creates maximum visual tension when paired with #331F1D. For more harmonious color combinations, use the analogous colours #341D27 and #342B1D, 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 #331F1D
- 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 #331F1D?
- #331F1D is Color #331F1D, a red color (colour) with RGB(51, 31, 29), HSL(5, 28%, 16%), and CMYK(0%, 39%, 43%, 80%). Its perceived brightness is 37/255.
- Is #331F1D accessible for text?
- Against white, #331F1D has a contrast ratio of 15.50:1 (passes AA for normal text). Against black, it has 1.35:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #331F1D?
- The complementary colour is #1D3234 (hue 185). For subtle color combinations, use analogous colours #341D27 and #342B1D. The triadic palette adds #1D341F and #1F1D34 for vibrant variety.
- How do I use #331F1D in CSS?
- Use any format: color: #331f1d; or rgb(51, 31, 29); or hsl(5, 28%, 16%). For CSS custom properties: --color-primary: 5 28% 16%; 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.