# #a4e901

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

## Values

- Hex: `#a4e901`
- RGB: rgb(164, 233, 1)
- HSL: hsl(78, 99%, 46%)
- OKLCH: oklch(0.855 0.224 128.1)
- Relative luminance: 0.6617
- Nearest named color: Inchworm (#b2ec5d, Δ 4.629) — https://brandsweets.com/colors/inchworm
- Moods: vivid
- Page: https://brandsweets.com/colors/a4e901

## Tints & shades

- Tints (toward white): #b4fe06, #bbfe20, #c4fe3e, #ccfe58, #d4fe71, #dcfe8a, #e3ffa4, #edffc2, #f4ffdb, #fcfff5
- Shades (toward black): #96d501, #87c101, #75a701, #679301, #597f01, #4b6b01, #3d5600, #2b3d00, #1c2900, #0e1400

## Harmonies

- Complementary: #4701e9
- Analogous: #e9bb01, #30e901
- Triadic: #01a4e9, #e901a4
- Split-complementary: #0130e9, #bb01e9
- Tetradic: #01e9bb, #4701e9, #e90130

## Colors that go with #a4e901

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 #a4e901 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
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #a4e901 — 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), Learning App (https://brandsweets.com/palettes/playful#learning-app), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #a4e901: 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
- **Blue** #0000ff [pool] — Two real palettes: Robinhood's brand system and MongoDB's brand system put Blue beside #a4e901, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #a4e901 in two real palettes: Learning App and Citrus Grove, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange
- **Gold** #ffd700 [pool] — Gold shows up next to #a4e901 in two real palettes: Prime Video's brand system and Ikea's brand system, as the lead colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Ikea (https://brandsweets.com/colors/brands/ikea-com). — https://brandsweets.com/colors/gold
- **Lime Green** #32cd32 [pool] — Two real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #a4e901, as the lead colour. Seen in: Duolingo (https://brandsweets.com/colors/brands/duolingo), Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com). — https://brandsweets.com/colors/limegreen
- **Mustard Yellow** #ffdb58 [pool] — Two real palettes: Citrus Grove and Star Wars's brand system put Mustard Yellow beside #a4e901, as the accent. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Star Wars (https://brandsweets.com/colors/brands/starwars-com). — https://brandsweets.com/colors/mustard

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

- On white (#ffffff): 1.48:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #597f01 (4.71:1); AA: background → #5c5c5c (4.53:1); AAA: text → #446000 (7.19:1); AAA: background → #404040 (7.03:1)
- On black (#000000): 14.23:1 — 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/a4e901-b2bea2-4e69df-232d1f-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: "#a4e901" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.