# #31fc53

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

## Values

- Hex: `#31fc53`
- RGB: rgb(49, 252, 83)
- HSL: hsl(130, 97%, 59%)
- OKLCH: oklch(0.866 0.259 144.9)
- Relative luminance: 0.709
- Nearest named color: Cathode Green (#00ff55, Δ 0.944) — https://brandsweets.com/colors/cathode-green
- Moods: vivid
- Page: https://brandsweets.com/colors/31fc53

## Tints & shades

- Tints (toward white): #45fc64, #59fc74, #6dfd85, #81fd96, #96fda7, #a5feb3, #b9fec4, #cdfed5, #e1ffe6, #f5fff7
- Shades (toward black): #18fb3e, #04f12b, #03d827, #03ba21, #02a11d, #028317, #026913, #014b0e, #013209, #001404

## Harmonies

- Complementary: #fc31da
- Analogous: #75fc31, #31fcb8
- Triadic: #5331fc, #fc5331
- Split-complementary: #b831fc, #fc3175
- Tetradic: #3175fc, #fc31da, #fcb831

## Colors that go with #31fc53

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 #31fc53 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
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #31fc53: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #31fc53: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Robinhood's brand system put Blue beside #31fc53, 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 #31fc53: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #31fc53: two real palettes: Remix's brand system and Prime Video's brand system, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Red** #ff0000 [pool] — Red is paired with #31fc53 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
- **Yellow Green** #9acd32 [harmony, pool: analogous] — Yellow Green is #31fc53's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com). — https://brandsweets.com/colors/yellowgreen

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

- On white (#ffffff): 1.38:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #028818 (4.63:1); AA: background → #5e5e5e (4.69:1); AAA: text → #026412 (7.41:1); AAA: background → #424242 (7.26:1)
- On black (#000000): 15.18:1 — 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/31fc53-a2beaa-b14edf-1f2d28-ecf1e9?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: "#31fc53" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.