# #a6c421

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

## Values

- Hex: `#a6c421`
- RGB: rgb(166, 196, 33)
- HSL: hsl(71, 71%, 45%)
- OKLCH: oklch(0.771 0.176 120.5)
- Relative luminance: 0.477
- Nearest named color: Aromatic Herbs (#98c945, Δ 2.267) — https://brandsweets.com/colors/aromatic-herbs
- Moods: vivid
- Page: https://brandsweets.com/colors/a6c421

## Tints & shades

- Tints (toward white): #b9da25, #c1de3f, #c8e255, #cfe66b, #d8ea85, #dfee9b, #e6f2b1, #edf5c6, #f5fae0, #fcfef6
- Shades (toward black): #98b31e, #89a11b, #7a9018, #6b7e15, #5c6d12, #4a570f, #3b460c, #2c3409, #1e2306, #0f1103

## Harmonies

- Complementary: #3f21c4
- Analogous: #c49121, #55c421
- Triadic: #21a6c4, #c421a6
- Split-complementary: #2155c4, #9121c4
- Tetradic: #21c491, #3f21c4, #c42155

## Colors that go with #a6c421

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 #a6c421: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Coastal (https://brandsweets.com/palettes/cool#coastal), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Taupe** #483c32 [pool] — Taupe is paired with #a6c421 in 11 real palettes, including Citrus Grove and Acer's brand system, as the text colour against it. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Plum** #dda0dd [harmony: complementary] — Plum sits directly opposite #a6c421 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/plum
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #a6c421 in 3 real palettes, including Citrus Grove and Learning App, as the lead colour. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #a6c421: 3 real palettes, including Maple and Fireside, as the lead colour. Seen in: Maple (https://brandsweets.com/palettes/warm#maple), Fireside (https://brandsweets.com/palettes/dark#fireside), Ember (https://brandsweets.com/palettes/bold#ember). — https://brandsweets.com/colors/firebrick
- **Red** #ff0000 [pool] — Red is paired with #a6c421 in 3 real palettes, including Gatorade's brand system and Wired's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wired (https://brandsweets.com/colors/brands/wired-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Sandy Brown** #f4a460 [pool] — Sandy Brown is paired with #a6c421 in 3 real palettes, including Forest Floor and Undergrowth, as the accent. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Ubereats (https://brandsweets.com/colors/brands/ubereats-com). — https://brandsweets.com/colors/sandybrown
- **Slate Gray** #708090 [pool] — 3 real palettes, including Noir Beauty and Ledger Dark put Slate Gray beside #a6c421, as the supporting colour. Seen in: Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/slategray

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

- On white (#ffffff): 1.99:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6b7e15 (4.55:1); AA: background → #474747 (4.66:1); AAA: text → #4e5c10 (7.34:1); AAA: background → #2b2b2b (7.11:1)
- On black (#000000): 10.54:1 — 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/a6c421-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: "#a6c421" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.