Color #178131 Color / Colour Code #178131
This page shows the hex color code for color #178131 (#178131). The colour is a green tone with 70% saturation and 30% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #178131 against common backgrounds.
Complementary Colors
#178131 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 105, 135, and 165 degrees for harmonious combinations.
Triadic Palette
Three colors at 135, 255, and 15 degrees.
Color Palettes Using #178131
Five shades at lightness levels 15% through 85% while keeping hue at 135 and saturation at 70%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 135 to 180 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 135 with its complement at 315 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 #178131
Lightness variations at hue 135 and 70% saturation.
CSS Gradients with #178131
Design Use Cases for #178131
Vibrant Brand Color
#178131 has a strong 70% 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 30% lightness, #178131 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.
Success & Growth Indicators
#178131 falls in the green range (hue 135). Green universally represents success, growth, and safety. Use it for confirmation messages, positive chart data, eco-friendly badges, and health metrics. In financial dashboards, green indicates gains and positive performance.
Gradient Pairing
Create a gradient from #178131 (hue 135) to its complement at hue 315. For a subtler effect, try pairing with an analogous color at hue 165. Use CSS: background: linear-gradient(135deg, #178131, #821767);
CSS Code for #178131
Similar Colors
Colors visually similar to #178131 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #178131 across image editing and color design tools.
About Color #178131 (#178131)
#178131 is a green color (colour) with RGB channel values of 23 red, 129 green, and 49 blue. The green channel is dominant by a ratio of 5.6:1 over the weakest channel. In HSL terms, the hue sits at 135 degrees with 70% saturation and 30% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #178131 is 88/255 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 82% cyan, 0% magenta, 62% yellow, and 49% key (black).
The WCAG contrast ratio of #178131 against white is 4.98:1 and against black is 4.22:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 21% lightness.
The complementary colour #821767 creates maximum visual tension when paired with #178131. For more harmonious color combinations, use the analogous colours #328217 and #178267, 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 #178131
- 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 #178131?
- #178131 is Color #178131, a green color (colour) with RGB(23, 129, 49), HSL(135, 70%, 30%), and CMYK(82%, 0%, 62%, 49%). Its perceived brightness is 88/255.
- Is #178131 accessible for text?
- Against white, #178131 has a contrast ratio of 4.98:1 (passes AA for normal text). Against black, it has 4.22:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #178131?
- The complementary colour is #821767 (hue 315). For subtle color combinations, use analogous colours #328217 and #178267. The triadic palette adds #321782 and #823217 for vibrant variety.
- How do I use #178131 in CSS?
- Use any format: color: #178131; or rgb(23, 129, 49); or hsl(135, 70%, 30%). For CSS custom properties: --color-primary: 135 70% 30%; 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.