# #b3d581

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

## Values

- Hex: `#b3d581`
- RGB: rgb(179, 213, 129)
- HSL: hsl(84, 50%, 67%)
- OKLCH: oklch(0.829 0.116 126.7)
- Relative luminance: 0.5876
- Nearest named color: Feijoa (#a5d785, Δ 1.635) — https://brandsweets.com/colors/feijoa
- Moods: neutral
- Page: https://brandsweets.com/colors/b3d581

## Tints & shades

- Tints (toward white): #bad98c, #c1dd98, #c8e0a3, #cfe4af, #d8e9be, #dfedc9, #e6f1d5, #edf5e0, #f4f9ec, #fafcf7
- Shades (toward black): #a5cd6a, #95c44f, #87b83d, #76a136, #658a2e, #516f25, #41581d, #304116, #1c260d, #0b0f05

## Harmonies

- Complementary: #a281d5
- Analogous: #d5cd81, #89d581
- Triadic: #81b3d5, #d581b3
- Split-complementary: #8189d5, #cd81d5
- Tetradic: #81d5cd, #a281d5, #d58189

## Colors that go with #b3d581

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 #b3d581: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Coastal (https://brandsweets.com/palettes/cool#coastal), Disney (https://brandsweets.com/colors/brands/disney-com), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Sky Blue** #87ceeb [harmony, pool: triadic] — Sky Blue completes a triad with #b3d581 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Still Water (https://brandsweets.com/palettes/cool#still-water), Oatly (https://brandsweets.com/colors/brands/oatly-com), Pastel Pop (https://brandsweets.com/palettes/playful#pastel-pop). — https://brandsweets.com/colors/skyblue
- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #b3d581 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/lilac
- **Blue** #0000ff [pool] — 4 real palettes, including Binance's brand system and Bumble's brand system put Blue beside #b3d581, as the accent. Seen in: Binance (https://brandsweets.com/colors/brands/binance-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #b3d581: 4 real palettes, including Coastal and Diner, as the lead colour. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Diner (https://brandsweets.com/palettes/vivid#diner), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Estate (https://brandsweets.com/palettes/luxury#estate). — https://brandsweets.com/colors/cadetblue
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Coffee Bar and Midnight Luxe put Champagne beside #b3d581, as that palette's text colour. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Bramble (https://brandsweets.com/palettes/muted#bramble), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/champagne
- **Crimson** #dc143c [pool] — Crimson is paired with #b3d581 in 10 real palettes, including Wise's brand system and Diner, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Diner (https://brandsweets.com/palettes/vivid#diner), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #b3d581 in 5 real palettes, including Oatmeal and Miro's brand system, as the lead colour. Seen in: Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Miro (https://brandsweets.com/colors/brands/miro-com), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market). — https://brandsweets.com/colors/darkolivegreen

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

- On white (#ffffff): 1.65:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5d7e2a (4.68:1); AA: background → #545454 (4.6:1); AAA: text → #466020 (7.11:1); AAA: background → #383838 (7.12:1)
- On black (#000000): 12.75:1 — 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/b3d581-afbea2-4e5adf-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: "#b3d581" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.