# #428221

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

## Values

- Hex: `#428221`
- RGB: rgb(66, 130, 33)
- HSL: hsl(100, 60%, 32%)
- OKLCH: oklch(0.544 0.145 137.1)
- Relative luminance: 0.1723
- Nearest named color: Overgrown Mausoleum (#448833, Δ 2.113) — https://brandsweets.com/colors/overgrown-mausoleum
- Moods: vivid
- Page: https://brandsweets.com/colors/428221

## Tints & shades

- Tints (toward white): #509f28, #5cb82e, #6cce3b, #7ed454, #94db70, #a9e28d, #bce9a5, #d1f0c2, #e3f6da, #f9fdf7
- Shades (toward black): #3b761e, #356a1b, #316218, #2b5615, #254912, #1f3d0f, #18310c, #14290a, #0e1d07, #081004

## Harmonies

- Complementary: #622183
- Analogous: #728321, #218331
- Triadic: #214183, #832141
- Split-complementary: #312183, #832172
- Tetradic: #217283, #622183, #833121

## Colors that go with #428221

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 body-text near-black for #428221: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. 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), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #428221 — 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), 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
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #428221 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Subaru (https://brandsweets.com/colors/brands/subaru-com), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #428221: 5 real palettes, including Xbox's brand system and Intel's brand system, as the supporting colour. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), 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). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #428221 in 11 real palettes, including Acer's brand system and Instacart's brand system, as that palette's text colour. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com). — https://brandsweets.com/colors/taupe
- **Dark Orchid** #9932cc [harmony: complementary] — Dark Orchid sits directly opposite #428221 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/darkorchid
- **Medium Violet Red** #c71585 [harmony, pool: split] — Medium Violet Red is a split-complement of #428221: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Blue** #0000ff [pool] — 3 real palettes, including Instacart's brand system and Kia's brand system put Blue beside #428221, as the accent. Seen in: Instacart (https://brandsweets.com/colors/brands/instacart-com), Kia (https://brandsweets.com/colors/brands/kia-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 4.72:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #316218 (7.26:1)
- On black (#000000): 4.45:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #438722 (4.73:1); AA: background → #fafafa (4.52:1); AAA: text → #56ab2b (7.26:1)

## Brands using this color

- **Acer** — accent #40810c (Δ 1.154) — https://brandsweets.com/colors/brands/acer-com
- **Shake Shack** — accent #418613 (Δ 1.615) — https://brandsweets.com/colors/brands/shakeshack-com
- **Bun** — primary #4d7c1b (Δ 1.877) — https://brandsweets.com/colors/brands/bun-sh
- **Bun** — accent #4d7c1b (Δ 1.877) — https://brandsweets.com/colors/brands/bun-sh

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/428221-a8bea2-694edf-1f2d21-f0f1e9?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: "#428221" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.