Color #12301D Color / Colour Code #12301D
This page shows the hex color code for color #12301d (#12301D). The colour is a green tone with 45% saturation and 13% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #12301D against common backgrounds.
Complementary Colors
#12301D paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 112, 142, and 172 degrees for harmonious combinations.
Triadic Palette
Three colors at 142, 262, and 22 degrees.
Color Palettes Using #12301D
Five shades at lightness levels 15% through 85% while keeping hue at 142 and saturation at 45%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 142 to 187 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 142 with its complement at 322 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 #12301D
Lightness variations at hue 142 and 45% saturation.
CSS Gradients with #12301D
Design Use Cases for #12301D
Balanced UI Color
At 45% saturation, #12301D strikes a balance between vibrancy and restraint. This makes it versatile for primary UI elements like navigation bars, card headers, and form accents. It draws attention without overwhelming adjacent content.
Dark Mode Background
At just 13% lightness, #12301D 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.
Success & Growth Indicators
#12301D falls in the green range (hue 142). 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 #12301D (hue 142) to its complement at hue 322. For a subtler effect, try pairing with an analogous color at hue 172. Use CSS: background: linear-gradient(135deg, #12301d, #301225);
CSS Code for #12301D
Similar Colors
Colors visually similar to #12301D based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #12301D across image editing and color design tools.
About Color #12301D (#12301D)
#12301D is a green color (colour) with RGB channel values of 18 red, 48 green, and 29 blue. The green channel is dominant by a ratio of 2.7:1 over the weakest channel. In HSL terms, the hue sits at 142 degrees with 45% saturation and 13% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #12301D is 37/255 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 63% cyan, 0% magenta, 40% yellow, and 81% key (black).
The WCAG contrast ratio of #12301D against white is 14.32:1 and against black is 1.47:1. 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 #301225 creates maximum visual tension when paired with #12301D. For more harmonious color combinations, use the analogous colours #163012 and #12302C, 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 #12301D
- 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 #12301D?
- #12301D is Color #12301D, a green color (colour) with RGB(18, 48, 29), HSL(142, 45%, 13%), and CMYK(63%, 0%, 40%, 81%). Its perceived brightness is 37/255.
- Is #12301D accessible for text?
- Against white, #12301D has a contrast ratio of 14.32:1 (passes AA for normal text). Against black, it has 1.47:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #12301D?
- The complementary colour is #301225 (hue 322). For subtle color combinations, use analogous colours #163012 and #12302C. The triadic palette adds #1D1230 and #301D12 for vibrant variety.
- How do I use #12301D in CSS?
- Use any format: color: #12301d; or rgb(18, 48, 29); or hsl(142, 45%, 13%). For CSS custom properties: --color-primary: 142 45% 13%; 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.