Color #066C3B Color / Colour Code #066C3B
This page shows the hex color code for color #066c3b (#066C3B). The colour is a cyan tone with 89% saturation and 22% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #066C3B against common backgrounds.
Complementary Colors
#066C3B paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 121, 151, and 181 degrees for harmonious combinations.
Triadic Palette
Three colors at 151, 271, and 31 degrees.
Color Palettes Using #066C3B
Five shades at lightness levels 15% through 85% while keeping hue at 151 and saturation at 89%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 151 to 196 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 151 with its complement at 331 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 #066C3B
Lightness variations at hue 151 and 89% saturation.
CSS Gradients with #066C3B
Design Use Cases for #066C3B
High-Impact Accent
With 89% saturation, #066C3B 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
#066C3B at 22% lightness is dark enough for readable body text on light backgrounds while retaining its cyan character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Clarity & Technology
#066C3B is in the cyan spectrum (hue 151). Cyan evokes technology, clarity, and innovation. It works well for tech product interfaces, data visualization accents, loading indicators, and futuristic design themes. Cyan provides a modern alternative to traditional blues.
Gradient Pairing
Create a gradient from #066C3B (hue 151) to its complement at hue 331. For a subtler effect, try pairing with an analogous color at hue 181. Use CSS: background: linear-gradient(135deg, #066c3b, #6a0636);
CSS Code for #066C3B
Similar Colors
Colors visually similar to #066C3B based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #066C3B across image editing and color design tools.
About Color #066C3B (#066C3B)
#066C3B is a cyan color (colour) with RGB channel values of 6 red, 108 green, and 59 blue. The green channel is dominant by a ratio of 18.0:1 over the weakest channel. In HSL terms, the hue sits at 151 degrees with 89% saturation and 22% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #066C3B is 72/255 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 94% cyan, 0% magenta, 45% yellow, and 58% key (black).
The WCAG contrast ratio of #066C3B against white is 6.53:1 and against black is 3.22:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 15% lightness.
The complementary colour #6A0636 creates maximum visual tension when paired with #066C3B. For more harmonious color combinations, use the analogous colours #066A08 and #06686A, 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 #066C3B
- 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 #066C3B?
- #066C3B is Color #066C3B, a cyan color (colour) with RGB(6, 108, 59), HSL(151, 89%, 22%), and CMYK(94%, 0%, 45%, 58%). Its perceived brightness is 72/255.
- Is #066C3B accessible for text?
- Against white, #066C3B has a contrast ratio of 6.53:1 (passes AA for normal text). Against black, it has 3.22:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #066C3B?
- The complementary colour is #6A0636 (hue 331). For subtle color combinations, use analogous colours #066A08 and #06686A. The triadic palette adds #3A066A and #6A3A06 for vibrant variety.
- How do I use #066C3B in CSS?
- Use any format: color: #066c3b; or rgb(6, 108, 59); or hsl(151, 89%, 22%). For CSS custom properties: --color-primary: 151 89% 22%; 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.