# #31fc89

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

## Values

- Hex: `#31fc89`
- RGB: rgb(49, 252, 137)
- HSL: hsl(146, 97%, 59%)
- OKLCH: oklch(0.872 0.218 152)
- Relative luminance: 0.7208
- Nearest named color: springgreen (#00ff7f, Δ 1.771) — https://brandsweets.com/colors/springgreen
- Moods: vivid
- Page: https://brandsweets.com/colors/31fc89

## Tints & shades

- Tints (toward white): #45fc94, #59fca0, #6dfdab, #81fdb7, #96fdc3, #a5fecb, #b9fed7, #cdfee2, #e1ffee, #f5fff9
- Shades (toward black): #18fb7b, #04f16b, #03d85f, #03ba52, #02a147, #02833a, #02692f, #014b21, #013216, #001409

## Harmonies

- Complementary: #fc31a4
- Analogous: #3ffc31, #31fcee
- Triadic: #8931fc, #fc8931
- Split-complementary: #ee31fc, #fc313f
- Tetradic: #313ffc, #fc31a4, #fcee31

## Colors that go with #31fc89

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 #31fc89 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 [pool] — Designers have shipped Deep Sky Blue with #31fc89: 3 real palettes, including Prime Video's brand system and Remix's brand system, as the supporting colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #31fc89: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #31fc89: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role] — Charcoal is the text near-black for #31fc89: softer than #000 and cool enough to feel like part of the same palette. — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #31fc89 in two real palettes: Wise's brand system and Formula 1's brand system, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Lime Green** #32cd32 [pool] — Two real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #31fc89, 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 #31fc89 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 1.36:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #02883c (4.58:1); AA: background → #616161 (4.55:1); AAA: text → #02642c (7.34:1); AAA: background → #454545 (7.04:1)
- On black (#000000): 15.42:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Form Builder with AI Automation** — accent #00ff84 (Δ 1.337) — https://brandsweets.com/colors/brands/typeform-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/31fc89-a2beb1-ce59d4-1f2d2b-eaf1e9?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: "#31fc89" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.