# #63fe1b

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

## Values

- Hex: `#63fe1b`
- RGB: rgb(99, 254, 27)
- HSL: hsl(101, 99%, 55%)
- OKLCH: oklch(0.879 0.271 139.1)
- Relative luminance: 0.7362
- Nearest named color: lawngreen (#7cfc00, Δ 1.622) — https://brandsweets.com/colors/lawngreen
- Moods: vivid
- Page: https://brandsweets.com/colors/63fe1b

## Tints & shades

- Tints (toward white): #70fe2f, #82fe48, #90fe5d, #9efe71, #affe8a, #bdff9f, #cbffb3, #d9ffc7, #eaffe1, #f8fff5
- Shades (toward black): #51fe01, #49e401, #41cb01, #39b201, #319801, #277a01, #1f6000, #174700, #0f2e00, #061400

## Harmonies

- Complementary: #b61bfe
- Analogous: #d4fe1b, #1bfe44
- Triadic: #1b63fe, #fe1b63
- Split-complementary: #441bfe, #fe1bd4
- Tetradic: #1bd4fe, #b61bfe, #fe441b

## Colors that go with #63fe1b

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: complementary] — Violet sits directly opposite #63fe1b 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/violet
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #63fe1b — 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). — https://brandsweets.com/colors/deepskyblue
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #63fe1b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Robinhood's brand system put Blue beside #63fe1b, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #63fe1b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Lilac** #c8a2c8 [harmony: split] — Lilac is a split-complement of #63fe1b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lilac
- **Lime Green** #32cd32 [pool] — Two real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #63fe1b, 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
- **Red** #ff0000 [pool] — Red is paired with #63fe1b in two real palettes: 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). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 1.34:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2a8401 (4.77:1); AA: background → #616161 (4.64:1); AAA: text → #206501 (7.18:1); AAA: background → #454545 (7.18:1)
- On black (#000000): 15.72:1 — 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/63fe1b-a7bea2-6b4edf-1f2d21-eff1e9?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: "#63fe1b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.