# #73ef39

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

## Values

- Hex: `#73ef39`
- RGB: rgb(115, 239, 57)
- HSL: hsl(101, 85%, 58%)
- OKLCH: oklch(0.848 0.239 138)
- Relative luminance: 0.6567
- Nearest named color: Becquerel (#4bec13, Δ 3.417) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/73ef39

## Tints & shades

- Tints (toward white): #80f04c, #8df25f, #9bf471, #a8f584, #b5f797, #c3f8aa, #d0fabd, #defbd0, #ebfde3, #f8fef6
- Shades (toward black): #62ed21, #52de12, #4ac610, #3faa0e, #36920c, #2e7b0a, #235e08, #1a4706, #102a03, #071302

## Harmonies

- Complementary: #b539ef
- Analogous: #ceef39, #39ef5a
- Triadic: #3973ef, #ef3973
- Split-complementary: #5a39ef, #ef39ce
- Tetradic: #39ceef, #b539ef, #ef5a39

## Colors that go with #73ef39

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

- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #73ef39 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #73ef39 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/violet
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #73ef39: 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). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #73ef39: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Robinhood's brand system put Blue beside #73ef39, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Lime Green** #32cd32 [pool] — Two real palettes: Monster Energy's brand system and Duolingo's brand system put Lime Green beside #73ef39, as the accent. Seen in: Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com), Duolingo (https://brandsweets.com/colors/brands/duolingo). — https://brandsweets.com/colors/limegreen
- **Red** #ff0000 [pool] — Red is paired with #73ef39 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #73ef39 in two real palettes: MongoDB's brand system and Brilliant's brand system, as the supporting colour. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 1.49:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #31840b (4.73:1); AA: background → #5c5c5c (4.5:1); AAA: text → #256308 (7.32:1); AAA: background → #3d3d3d (7.31:1)
- On black (#000000): 14.13:1 — 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/73ef39-a7bea2-6b4edf-1f2d21-eff1e9?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: "#73ef39" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.