# #b2de21

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

## Values

- Hex: `#b2de21`
- RGB: rgb(178, 222, 33)
- HSL: hsl(74, 74%, 50%)
- OKLCH: oklch(0.839 0.199 123.2)
- Relative luminance: 0.6182
- Nearest named color: Conifer (#b1dd52, Δ 2.784) — https://brandsweets.com/colors/conifer
- Moods: vivid
- Page: https://brandsweets.com/colors/b2de21

## Tints & shades

- Tints (toward white): #bae137, #c1e44e, #c7e75f, #cfea75, #d7ee8c, #dff1a2, #e6f4b8, #ecf7ca, #f4fae0, #fcfef6
- Shades (toward black): #a0c81e, #92b61b, #80a018, #728e15, #607812, #4e620f, #40500c, #2e3a09, #202806, #0e1203

## Harmonies

- Complementary: #4d21de
- Analogous: #deac21, #53de21
- Triadic: #21b2de, #de21b2
- Split-complementary: #2153de, #ac21de
- Tetradic: #21deac, #4d21de, #de2153

## Colors that go with #b2de21

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

- **Blue** #0000ff [pool] — 5 real palettes, including Robinhood's brand system and MongoDB's brand system put Blue beside #b2de21, 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), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #b2de21 in 7 real palettes, including Wise's brand system and Lay's's brand system, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), Tabloid (https://brandsweets.com/palettes/editorial#tabloid). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #b2de21 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Learning App (https://brandsweets.com/palettes/playful#learning-app), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #b2de21: 5 real palettes, including Ikea's brand system and LEGO's brand system, as the accent. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), LEGO (https://brandsweets.com/colors/brands/lego-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/denim
- **Red** #ff0000 [pool] — Red is paired with #b2de21 in 6 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), Paddle (https://brandsweets.com/colors/brands/paddle-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/red
- **Plum** #dda0dd [harmony: complementary] — Plum sits directly opposite #b2de21 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
- **Violet** #ee82ee [harmony, pool: split] — Violet is a split-complement of #b2de21: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Gumroad (https://brandsweets.com/colors/brands/gumroad-com). — https://brandsweets.com/colors/violet
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b2de21: 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

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

- On white (#ffffff): 1.57:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #647c13 (4.74:1); AA: background → #575757 (4.6:1); AAA: text → #4b5d0e (7.31:1); AAA: background → #3b3b3b (7.13:1)
- On black (#000000): 13.36:1 — 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/b2de21-b4bea2-4e72df-242d1f-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: "#b2de21" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.