# #ecff99

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

## Values

- Hex: `#ecff99`
- RGB: rgb(236, 255, 153)
- HSL: hsl(71, 100%, 80%)
- OKLCH: oklch(0.964 0.128 117.5)
- Relative luminance: 0.9165
- Nearest named color: Lime Mist (#ddffaa, Δ 2.42) — https://brandsweets.com/colors/lime-mist
- Moods: vivid, light, clean
- Page: https://brandsweets.com/colors/ecff99

## Tints & shades

- Tints (toward white): #eeffa3, #f0ffad, #f1ffb3, #f3ffbd, #f5ffc7, #f7ffd1, #f8ffdb, #f9ffe0, #fbffeb, #fdfff5
- Shades (toward black): #e5ff70, #deff4d, #d7ff24, #d0ff00, #afd600, #8ead00, #708a00, #4f6100, #323d00, #111400

## Harmonies

- Complementary: #ac99ff
- Analogous: #ffdf99, #b9ff99
- Triadic: #99ecff, #ff99ec
- Split-complementary: #99b9ff, #df99ff
- Tetradic: #99ffdf, #ac99ff, #ff99b9

## Colors that go with #ecff99

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 #ecff99: 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), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Lido (https://brandsweets.com/palettes/vivid#lido), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/charcoal
- **Plum** #dda0dd [harmony, pool: complementary] — Plum sits directly opposite #ecff99 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Amber** #ffbf00 [pool] — Amber is paired with #ecff99 in 6 real palettes, including Gumroad's brand system and Binance's brand system, as the accent. Seen in: Gumroad (https://brandsweets.com/colors/brands/gumroad-com), Binance (https://brandsweets.com/colors/brands/binance-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Maple (https://brandsweets.com/palettes/warm#maple). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Snapchat's brand system and Bumble's brand system put Blue beside #ecff99, as the supporting colour. Seen in: Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Binance (https://brandsweets.com/colors/brands/binance-com). — https://brandsweets.com/colors/blue
- **Burlywood** #deb887 [pool] — Burlywood is paired with #ecff99 in 4 real palettes, including Coffee Bar and Chalkboard, as the accent. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/burlywood
- **Crimson** #dc143c [pool] — Crimson is paired with #ecff99 in 6 real palettes, including Lay's's brand system and Ferrari's brand system, as the accent. Seen in: Lay's (https://brandsweets.com/colors/brands/lays-com), Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #ecff99 in 8 real palettes, including Miro's brand system and Cider, as the supporting colour. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Cider (https://brandsweets.com/palettes/warm#cider), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/darkolivegreen
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ecff99: 5 real palettes, including JetBrains's brand system and Star Wars's brand system, as the supporting colour. Seen in: JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), Miro (https://brandsweets.com/colors/brands/miro-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 1.09:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #647a00 (4.85:1); AA: background → #707070 (4.56:1); AAA: text → #4b5c00 (7.42:1); AAA: background → #525252 (7.19:1)
- On black (#000000): 19.33:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ecff99-b6bea2-4e7adf-252d1f-f1efe9?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: "#ecff99" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.