# #b3fa19

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

## Values

- Hex: `#b3fa19`
- RGB: rgb(179, 250, 25)
- HSL: hsl(79, 96%, 54%)
- OKLCH: oklch(0.904 0.231 127.8)
- Relative luminance: 0.7803
- Nearest named color: greenyellow (#adff2f, Δ 1.289) — https://brandsweets.com/colors/greenyellow
- Moods: vivid
- Page: https://brandsweets.com/colors/b3fa19

## Tints & shades

- Tints (toward white): #bafb2d, #c2fb46, #c8fc5a, #d1fc73, #d7fd87, #defd9b, #e6fdb4, #edfec8, #f5fee1, #fcfff5
- Shades (toward black): #a9f505, #98dc04, #86c304, #75aa03, #649103, #537802, #425f02, #304601, #1f2d01, #0e1400

## Harmonies

- Complementary: #6019fa
- Analogous: #fad119, #42fa19
- Triadic: #19b3fa, #fa19b3
- Split-complementary: #1942fa, #d119fa
- Tetradic: #19fad1, #6019fa, #fa1942

## Colors that go with #b3fa19

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 #b3fa19 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
- **Red** #ff0000 [pool] — Red is paired with #b3fa19 in 4 real palettes, including Wise's brand system and Heineken's brand system, as the lead colour. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Heineken (https://brandsweets.com/colors/brands/heineken-com), Gatorade (https://brandsweets.com/colors/brands/gatorade-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 Snapchat's brand system put Blue beside #b3fa19, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b3fa19: 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
- **Taupe** #483c32 [pool] — Taupe is paired with #b3fa19 in 3 real palettes, including Calvin Klein's brand system and Tommy Hilfiger's brand system, as the lead colour. Seen in: Calvin Klein (https://brandsweets.com/colors/brands/calvinklein-us), Tommy Hilfiger (https://brandsweets.com/colors/brands/tommy-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box). — https://brandsweets.com/colors/taupe
- **Crimson** #dc143c [pool] — Crimson is paired with #b3fa19 in two real palettes: 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). — https://brandsweets.com/colors/crimson
- **Deep Pink** #ff1493 [pool] — Two real palettes: Arcade and JetBrains's brand system put Deep Pink beside #b3fa19, as the lead colour. Seen in: Arcade (https://brandsweets.com/palettes/vivid#arcade), JetBrains (https://brandsweets.com/colors/brands/jetbrains-com). — https://brandsweets.com/colors/deeppink
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #b3fa19: two real palettes: JetBrains's brand system and Star Wars's brand system, as the supporting colour. Seen in: JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 1.26:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5a8203 (4.54:1); AA: background → #666666 (4.54:1); AAA: text → #425f02 (7.32:1); AAA: background → #4a4a4a (7.01:1)
- On black (#000000): 16.61:1 — 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/b3fa19-b2bea2-4e66df-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: "#b3fa19" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.