Color #8A0100 Color / Colour Code #8A0100
This page shows the hex color code for color #8a0100 (#8A0100). The colour is a red tone with 100% saturation and 27% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #8A0100 against common backgrounds.
Complementary Colors
#8A0100 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 #8A0100
Five shades at lightness levels 15% through 85% while keeping hue at 0 and saturation at 100%. 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 #8A0100
Lightness variations at hue 0 and 100% saturation.
CSS Gradients with #8A0100
Design Use Cases for #8A0100
High-Impact Accent
With 100% saturation, #8A0100 is highly vivid. Reserve this for elements that need maximum attention: primary action buttons, notification badges, error states, or promotional banners. Use sparingly alongside neutral tones to avoid visual fatigue.
Deep Accent & Text Color
#8A0100 at 27% 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
#8A0100 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 #8A0100 (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, #8a0100, #008a8a);
CSS Code for #8A0100
Similar Colors
Colors visually similar to #8A0100 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #8A0100 across image editing and color design tools.
About Color #8A0100 (#8A0100)
#8A0100 is a red color (colour) with RGB channel values of 138 red, 1 green, and 0 blue. The red channel is dominant by a ratio of 138.0:1 over the weakest channel. In HSL terms, the hue sits at 0 degrees with 100% saturation and 27% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #8A0100 is 42/255 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, 99% magenta, 100% yellow, and 46% key (black).
The WCAG contrast ratio of #8A0100 against white is 10.07:1 and against black is 2.08:1. 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 #008A8A creates maximum visual tension when paired with #8A0100. For more harmonious color combinations, use the analogous colours #8A0045 and #8A4500, 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 #8A0100
- 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 #8A0100?
- #8A0100 is Color #8A0100, a red color (colour) with RGB(138, 1, 0), HSL(0, 100%, 27%), and CMYK(0%, 99%, 100%, 46%). Its perceived brightness is 42/255.
- Is #8A0100 accessible for text?
- Against white, #8A0100 has a contrast ratio of 10.07:1 (passes AA for normal text). Against black, it has 2.08:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #8A0100?
- The complementary colour is #008A8A (hue 180). For subtle color combinations, use analogous colours #8A0045 and #8A4500. The triadic palette adds #008A00 and #00008A for vibrant variety.
- How do I use #8A0100 in CSS?
- Use any format: color: #8a0100; or rgb(138, 1, 0); or hsl(0, 100%, 27%). For CSS custom properties: --color-primary: 0 100% 27%; 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.