# #a9ea39

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

## Values

- Hex: `#a9ea39`
- RGB: rgb(169, 234, 57)
- HSL: hsl(82, 81%, 57%)
- OKLCH: oklch(0.862 0.207 128.3)
- Relative luminance: 0.6758
- Nearest named color: Inchworm (#b2ec5d, Δ 2.825) — https://brandsweets.com/colors/inchworm
- Moods: vivid
- Page: https://brandsweets.com/colors/a9ea39

## Tints & shades

- Tints (toward white): #b1ec4b, #b9ee5d, #c1f070, #c9f282, #d3f499, #dbf6ac, #e3f8be, #ebfad1, #f3fce3, #fbfef6
- Shades (toward black): #9fe821, #8fd416, #7fbd14, #70a611, #608f0f, #4e730c, #3e5c0a, #2f4507, #1c2a04, #0c1202

## Harmonies

- Complementary: #7a39ea
- Analogous: #ead239, #50ea39
- Triadic: #39a9ea, #ea39a9
- Split-complementary: #3950ea, #d239ea
- Tetradic: #39ead2, #7a39ea, #ea3950

## Colors that go with #a9ea39

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

- **Violet** #ee82ee [harmony, pool: complementary] — Violet sits directly opposite #a9ea39 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Gumroad (https://brandsweets.com/colors/brands/gumroad-com). — https://brandsweets.com/colors/violet
- **Crimson** #dc143c [pool] — Crimson is paired with #a9ea39 in 4 real palettes, including Wise's brand system and Ferrari's brand system, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #a9ea39 in 5 real palettes, including Wise's brand system and Gatorade's brand system, as the lead colour. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Heineken (https://brandsweets.com/colors/brands/heineken-com), Paddle (https://brandsweets.com/colors/brands/paddle-com). — https://brandsweets.com/colors/red
- **Blue** #0000ff [pool] — 3 real palettes, including Robinhood's brand system and MongoDB's brand system put Blue beside #a9ea39, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Binance (https://brandsweets.com/colors/brands/binance-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #a9ea39: 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
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #a9ea39 — 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). — https://brandsweets.com/colors/deepskyblue
- **Gold** #ffd700 [pool] — Gold shows up next to #a9ea39 in 3 real palettes, including Ikea's brand system and Prime Video's brand system, as the supporting colour. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Paddle (https://brandsweets.com/colors/brands/paddle-com). — https://brandsweets.com/colors/gold
- **Mustard Yellow** #ffdb58 [pool] — 3 real palettes, including Star Wars's brand system and Lay's's brand system put Mustard Yellow beside #a9ea39, as the accent. Seen in: Star Wars (https://brandsweets.com/colors/brands/starwars-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/mustard

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

- On white (#ffffff): 1.45:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #57810e (4.61:1); AA: background → #5c5c5c (4.62:1); AAA: text → #41610a (7.15:1); AAA: background → #404040 (7.17:1)
- On black (#000000): 14.52:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Neobank** (vivid, bold, modern) — #6d28d9, #0f0f0f, #a3e635, #ffffff — Purple-and-lime is the challenger-bank uniform — high energy, and clearly not a legacy bank. — tool: https://brandsweets.com/palettes/new/6d28d9-0f0f0f-a3e635-ffffff — collection: https://brandsweets.com/palettes/vivid

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a9ea39-b0bea2-4e5fdf-222d1f-f1f0e9?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: "#a9ea39" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.