# #18fb27

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

## Values

- Hex: `#18fb27`
- RGB: rgb(24, 251, 39)
- HSL: hsl(124, 97%, 54%)
- OKLCH: oklch(0.858 0.283 143)
- Relative luminance: 0.6934
- Nearest named color: Cyber Neon Green (#00ff26, Δ 1.075) — https://brandsweets.com/colors/cyber-neon-green
- Moods: vivid
- Page: https://brandsweets.com/colors/18fb27

## Tints & shades

- Tints (toward white): #2cfc3a, #45fc51, #59fc64, #72fd7c, #86fd8e, #9bfda1, #b4feb9, #c8fecb, #e1ffe3, #f5fff6
- Shades (toward black): #04f614, #03dd12, #03c410, #03ab0e, #02920c, #02790a, #015f08, #014606, #012d04, #001402

## Harmonies

- Complementary: #fb18ec
- Analogous: #7bfb18, #18fb99
- Triadic: #2718fb, #fb2718
- Split-complementary: #9918fb, #fb187b
- Tetradic: #187bfb, #fb18ec, #fb9918

## Colors that go with #18fb27

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 #18fb27 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 #18fb27: 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 #18fb27: 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 body-text near-black for #18fb27: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [pool] — Red is paired with #18fb27 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
- **Salmon** #fa8072 [harmony: triadic] — Salmon completes a triad with #18fb27 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/salmon
- **Cornflower Blue** #6495ed [harmony: triadic] — Cornflower Blue completes a triad with #18fb27 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/cornflowerblue
- **Medium Aquamarine** #66cdaa [harmony: analogous] — Medium Aquamarine is #18fb27's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. — https://brandsweets.com/colors/mediumaquamarine

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

- On white (#ffffff): 1.41:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #02880b (4.64:1); AA: background → #5e5e5e (4.59:1); AAA: text → #026408 (7.42:1); AAA: background → #424242 (7.11:1)
- On black (#000000): 14.87:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Laser** (neon, vivid, dark, technical) — #39ff14, #bf00ff, #00e5ff, #07070d, #eefaf0 — Laser green, violet and cyan — the synthwave/gaming set; keep the type near-white and let one neon own each screen. — tool: https://brandsweets.com/palettes/new/39ff14-bf00ff-00e5ff-07070d-eefaf0 — collection: https://brandsweets.com/palettes/neon

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/18fb27-a2bea7-a24edf-1f2d26-edf1e9?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: "#18fb27" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.