# #28af4e

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

## Values

- Hex: `#28af4e`
- RGB: rgb(40, 175, 78)
- HSL: hsl(137, 63%, 42%)
- OKLCH: oklch(0.663 0.177 147.9)
- Relative luminance: 0.3166
- Nearest named color: Fennel Fiasco (#00aa44, Δ 2.1) — https://brandsweets.com/colors/fennel-fiasco
- Moods: vivid
- Page: https://brandsweets.com/colors/28af4e

## Tints & shades

- Tints (toward white): #2dc859, #3cd366, #55d87a, #69dd8a, #82e39e, #9be8b1, #b0edc1, #c9f3d5, #def7e5, #f7fdf9
- Shades (toward black): #249e46, #208d3f, #1d8139, #197032, #16602b, #124f23, #0e3e1c, #0b3216, #08210f, #041107

## Harmonies

- Complementary: #af2888
- Analogous: #45af28, #28af91
- Triadic: #4e28af, #af4e28
- Split-complementary: #9128af, #af2845
- Tetradic: #2845af, #af2888, #af9128

## Colors that go with #28af4e

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 #28af4e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), N26 (https://brandsweets.com/colors/brands/n26-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Spotify's brand system and Unity's brand system put Blue beside #28af4e, as the accent. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #28af4e in 4 real palettes, including Console Light and Telehealth, as the lead colour. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #28af4e in 9 real palettes, including Obsidian's brand system and Chime's brand system, as the text colour against it. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Chime (https://brandsweets.com/colors/brands/chime-com), Meadow (https://brandsweets.com/palettes/light#meadow), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe
- **Fuchsia** #ff00ff [harmony: complementary] — Fuchsia sits directly opposite #28af4e 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/fuchsia
- **Medium Purple** #9370db [harmony, pool: split] — Medium Purple is a split-complement of #28af4e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/mediumpurple
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #28af4e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/cornflowerblue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #28af4e in 3 real palettes, including Playground and Citrus Grove, as the lead colour. Seen in: Playground (https://brandsweets.com/palettes/bold#playground), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/darkorange

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

- On white (#ffffff): 2.86:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1e853b (4.69:1); AA: background → #303030 (4.61:1); AAA: text → #17642c (7.25:1); AAA: background → #050505 (7.12:1)
- On black (#000000): 7.33:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/28af4e-a2bead-bb59d4-1f2d29-ebf1e9?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: "#28af4e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.