Color #00A21E Color / Colour Code #00A21E
This page shows the hex color code for color #00a21e (#00A21E). The colour is a green tone with 100% saturation and 32% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #00A21E against common backgrounds.
Complementary Colors
#00A21E paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 101, 131, and 161 degrees for harmonious combinations.
Triadic Palette
Three colors at 131, 251, and 11 degrees.
Color Palettes Using #00A21E
Five shades at lightness levels 15% through 85% while keeping hue at 131 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 131 to 176 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 131 with its complement at 311 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 #00A21E
Lightness variations at hue 131 and 100% saturation.
CSS Gradients with #00A21E
Design Use Cases for #00A21E
High-Impact Accent
With 100% saturation, #00A21E 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.
Primary Interface Color
At 32% lightness, #00A21E 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
#00A21E falls in the green range (hue 131). 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 #00A21E (hue 131) to its complement at hue 311. For a subtler effect, try pairing with an analogous color at hue 161. Use CSS: background: linear-gradient(135deg, #00a21e, #a30085);
CSS Code for #00A21E
Similar Colors
Colors visually similar to #00A21E based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #00A21E across image editing and color design tools.
About Color #00A21E (#00A21E)
#00A21E is a green color (colour) with RGB channel values of 0 red, 162 green, and 30 blue. The green channel is dominant by a ratio of 162.0:1 over the weakest channel. In HSL terms, the hue sits at 131 degrees with 100% saturation and 32% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #00A21E is 99/255 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 100% cyan, 0% magenta, 81% yellow, and 36% key (black).
The WCAG contrast ratio of #00A21E against white is 3.39:1 and against black is 6.19:1. This only passes AA for large text (18pt+) on white. For normal body text on white, darken the color or use it on a dark background where it achieves 6.19:1.
The complementary colour #A30085 creates maximum visual tension when paired with #00A21E. For more harmonious color combinations, use the analogous colours #34A300 and #00A370, 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 #00A21E
- 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 #00A21E?
- #00A21E is Color #00A21E, a green color (colour) with RGB(0, 162, 30), HSL(131, 100%, 32%), and CMYK(100%, 0%, 81%, 36%). Its perceived brightness is 99/255.
- Is #00A21E accessible for text?
- Against white, #00A21E has a contrast ratio of 3.39:1 (fails AA for normal text). Against black, it has 6.19:1 (passes AA). It passes AA for large text (18pt+) on white. Use the contrast checker tool for custom background pairings.
- What colours pair well with #00A21E?
- The complementary colour is #A30085 (hue 311). For subtle color combinations, use analogous colours #34A300 and #00A370. The triadic palette adds #1E00A3 and #A31E00 for vibrant variety.
- How do I use #00A21E in CSS?
- Use any format: color: #00a21e; or rgb(0, 162, 30); or hsl(131, 100%, 32%). For CSS custom properties: --color-primary: 131 100% 32%; 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.