# #1c8243

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#1c8243`
- RGB: rgb(28, 130, 67)
- HSL: hsl(143, 65%, 31%)
- OKLCH: oklch(0.535 0.132 151.1)
- Relative luminance: 0.1662
- Nearest named color: Bold Irish (#2a814d, Δ 1.727) — https://brandsweets.com/colors/bold-irish
- Moods: vivid
- Page: https://brandsweets.com/colors/1c8243

## Tints & shades

- Tints (toward white): #22a052, #27b95f, #31d36f, #4eda84, #6ce098, #85e5aa, #a2ebbe, #c0f2d3, #d9f7e5, #f7fdf9
- Shades (toward black): #19763d, #176d38, #156132, #12542b, #104c27, #0d3f20, #0b321a, #082613, #061d0f, #041109

## Harmonies

- Complementary: #821c5b
- Analogous: #28821c, #1c8276
- Triadic: #431c82, #82431c
- Split-complementary: #761c82, #821c28
- Tetradic: #1c2882, #821c5b, #82761c

## Colors that go with #1c8243

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #1c8243: softer than #000 and cool enough to feel like part of the same palette. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #1c8243 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Subaru (https://brandsweets.com/colors/brands/subaru-com), Xbox (https://brandsweets.com/colors/brands/xbox-com), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #1c8243 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Blue** #0000ff [pool] — 4 real palettes, including Kia's brand system and Instacart's brand system put Blue beside #1c8243, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Rolex (https://brandsweets.com/colors/brands/rolex-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #1c8243 in 6 real palettes, including Coinbase's brand system and Five Guys's brand system. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1c8243: 6 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Paramount+'s brand system and Telehealth put Midnight Blue beside #1c8243, as the supporting colour. Seen in: Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #1c8243: 4 real palettes, including Forest Floor and Olive Grove, as the lead colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch). — https://brandsweets.com/colors/sage-green

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 4.86:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #156534 (7.14:1)
- On black (#000000): 4.32:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1d8745 (4.6:1); AA: background → #f7f7f7 (4.53:1); AAA: text → #25ad59 (7.2:1)

## Brands using this color

- **GitHub** — success #1a7f37 (Δ 1.521) — https://brandsweets.com/colors/brands/github
- **Lemon Squeezy** — secondary #1e874c (Δ 1.698) — https://brandsweets.com/colors/brands/lemonsqueezy-com
- **Coinbase** — success #098551 (Δ 1.707) — https://brandsweets.com/colors/brands/coinbase
- **Kia** — secondary #00884d (Δ 1.837) — https://brandsweets.com/colors/brands/kia-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/1c8243-a2beb0-c859d4-1f2d2b-eaf1e9?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#1c8243" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.