Color #0D0D0D Color / Colour Code #0D0D0D
This page shows the hex color code for color #0d0d0d (#0D0D0D). The colour is a red tone with 0% saturation and 5% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #0D0D0D against common backgrounds.
Complementary Colors
#0D0D0D paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 330, 0, and 30 degrees for harmonious combinations.
Triadic Palette
Three colors at 0, 120, and 240 degrees.
Color Palettes Using #0D0D0D
Five shades at lightness levels 15% through 85% while keeping hue at 0 and saturation at 0%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 0 to 45 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 0 with its complement at 180 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 #0D0D0D
Lightness variations at hue 0 and 0% saturation.
CSS Gradients with #0D0D0D
Design Use Cases for #0D0D0D
Neutral Foundation Color
#0D0D0D has almost no saturation (0%), making it an excellent neutral. Use it for page backgrounds, card surfaces, divider lines, and any element that should recede visually. Neutrals like this form the foundation of every professional design system.
Dark Mode Background
At just 5% lightness, #0D0D0D 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
#0D0D0D falls in the red spectrum (hue 0). 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 #0D0D0D (hue 0) to its complement at hue 180. For a subtler effect, try pairing with an analogous color at hue 30. Use CSS: background: linear-gradient(135deg, #0d0d0d, #0d0d0d);
CSS Code for #0D0D0D
Similar Colors
Colors visually similar to #0D0D0D based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #0D0D0D across image editing and color design tools.
About Color #0D0D0D (#0D0D0D)
#0D0D0D is a red color (colour) with RGB channel values of 13 red, 13 green, and 13 blue. The red channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 0 degrees with 0% saturation and 5% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #0D0D0D is 13/255 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, 0% magenta, 0% yellow, and 95% key (black).
The WCAG contrast ratio of #0D0D0D against white is 19.44:1 and against black is 1.08:1. 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 #0D0D0D creates maximum visual tension when paired with #0D0D0D. For more harmonious color combinations, use the analogous colours #0D0D0D and #0D0D0D, 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 #0D0D0D
- 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 #0D0D0D?
- #0D0D0D is Color #0D0D0D, a red color (colour) with RGB(13, 13, 13), HSL(0, 0%, 5%), and CMYK(0%, 0%, 0%, 95%). Its perceived brightness is 13/255.
- Is #0D0D0D accessible for text?
- Against white, #0D0D0D has a contrast ratio of 19.44:1 (passes AA for normal text). Against black, it has 1.08:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #0D0D0D?
- The complementary colour is #0D0D0D (hue 180). For subtle color combinations, use analogous colours #0D0D0D and #0D0D0D. The triadic palette adds #0D0D0D and #0D0D0D for vibrant variety.
- How do I use #0D0D0D in CSS?
- Use any format: color: #0d0d0d; or rgb(13, 13, 13); or hsl(0, 0%, 5%). For CSS custom properties: --color-primary: 0 0% 5%; 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.