Color #2A040A Color / Colour Code #2A040A
This page shows the hex color code for color #2a040a (#2A040A). The colour is a red tone with 83% saturation and 9% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #2A040A against common backgrounds.
Complementary Colors
#2A040A paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 321, 351, and 21 degrees for harmonious combinations.
Triadic Palette
Three colors at 351, 111, and 231 degrees.
Color Palettes Using #2A040A
Five shades at lightness levels 15% through 85% while keeping hue at 351 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 351 to 36 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 351 with its complement at 171 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 #2A040A
Lightness variations at hue 351 and 83% saturation.
CSS Gradients with #2A040A
Design Use Cases for #2A040A
Vibrant Brand Color
#2A040A 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.
Dark Mode Background
At just 9% lightness, #2A040A works as a dark mode background or overlay color. Dark backgrounds reduce eye strain in low-light environments and make bright accent colors pop. Pair with light text (minimum 4.5:1 contrast ratio) for readability.
Urgency & Energy Signaling
#2A040A falls in the red spectrum (hue 351). 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 #2A040A (hue 351) to its complement at hue 171. For a subtler effect, try pairing with an analogous color at hue 21. Use CSS: background: linear-gradient(135deg, #2a040a, #042a24);
CSS Code for #2A040A
Similar Colors
Colors visually similar to #2A040A based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #2A040A across image editing and color design tools.
About Color #2A040A (#2A040A)
#2A040A is a red color (colour) with RGB channel values of 42 red, 4 green, and 10 blue. The red channel is dominant by a ratio of 10.5:1 over the weakest channel. In HSL terms, the hue sits at 351 degrees with 83% saturation and 9% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #2A040A is 16/255 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, 90% magenta, 76% yellow, and 84% key (black).
The WCAG contrast ratio of #2A040A against white is 18.75:1 and against black is 1.12:1. 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 #042A24 creates maximum visual tension when paired with #2A040A. For more harmonious color combinations, use the analogous colours #2A041D and #2A1104, 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 #2A040A
- 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 #2A040A?
- #2A040A is Color #2A040A, a red color (colour) with RGB(42, 4, 10), HSL(351, 83%, 9%), and CMYK(0%, 90%, 76%, 84%). Its perceived brightness is 16/255.
- Is #2A040A accessible for text?
- Against white, #2A040A has a contrast ratio of 18.75:1 (passes AA for normal text). Against black, it has 1.12:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #2A040A?
- The complementary colour is #042A24 (hue 171). For subtle color combinations, use analogous colours #2A041D and #2A1104. The triadic palette adds #0A2A04 and #040A2A for vibrant variety.
- How do I use #2A040A in CSS?
- Use any format: color: #2a040a; or rgb(42, 4, 10); or hsl(351, 83%, 9%). For CSS custom properties: --color-primary: 351 83% 9%; 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.