# #90fc31

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

## Values

- Hex: `#90fc31`
- RGB: rgb(144, 252, 49)
- HSL: hsl(92, 97%, 59%)
- OKLCH: oklch(0.891 0.243 134.6)
- Relative luminance: 0.7577
- Nearest named color: Acid Green (#8ffe09, Δ 1.279) — https://brandsweets.com/colors/acid-green
- Moods: vivid
- Page: https://brandsweets.com/colors/90fc31

## Tints & shades

- Tints (toward white): #9bfc45, #a5fc59, #b0fd6d, #bbfd81, #c6fd96, #cefea5, #d9feb9, #e4fecd, #efffe1, #fafff5
- Shades (toward black): #82fb18, #72f104, #67d803, #58ba03, #4ca102, #3e8302, #326902, #244b01, #183201, #0a1400

## Harmonies

- Complementary: #9d31fc
- Analogous: #f5fc31, #31fc38
- Triadic: #3190fc, #fc3190
- Split-complementary: #3831fc, #fc31f5
- Tetradic: #31f5fc, #9d31fc, #fc3831

## Colors that go with #90fc31

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 #90fc31 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
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #90fc31: 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
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #90fc31 — 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), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #90fc31: 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: Robinhood's brand system and MongoDB's brand system put Blue beside #90fc31, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Lime Green** #32cd32 [pool] — Two real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #90fc31, 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 #90fc31 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
- **Lilac** #c8a2c8 [harmony: split] — Lilac is a split-complement of #90fc31: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lilac

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

- On white (#ffffff): 1.3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3e8302 (4.72:1); AA: background → #636363 (4.62:1); AAA: text → #306402 (7.12:1); AAA: background → #474747 (7.15:1)
- On black (#000000): 16.15:1 — 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/90fc31-acbea2-564edf-202d1f-f1f1e9?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: "#90fc31" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.