# #00fa21

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

## Values

- Hex: `#00fa21`
- RGB: rgb(0, 250, 33)
- HSL: hsl(128, 100%, 49%)
- OKLCH: oklch(0.854 0.285 143.1)
- Relative luminance: 0.6848
- Nearest named color: Cyber Neon Green (#00ff26, Δ 1.345) — https://brandsweets.com/colors/cyber-neon-green
- Moods: vivid
- Page: https://brandsweets.com/colors/00fa21

## Tints & shades

- Tints (toward white): #14ff34, #2eff4a, #47ff60, #61ff76, #7aff8c, #8fff9e, #a8ffb4, #c2ffca, #dbffe0, #f5fff6
- Shades (toward black): #00e61f, #00cc1b, #00b818, #009e15, #008a12, #00700f, #005c0c, #004209, #002e06, #001403

## Harmonies

- Complementary: #fa00d9
- Analogous: #5cfa00, #00fa9e
- Triadic: #2100fa, #fa2100
- Split-complementary: #9e00fa, #fa005c
- Tetradic: #005cfa, #fa00d9, #fa9e00

## Colors that go with #00fa21

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 #00fa21 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 #00fa21: 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 #00fa21: 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 #00fa21: 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 #00fa21 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 #00fa21 — 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 #00fa21 — 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 #00fa21'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): 1.43:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #008a12 (4.52:1); AA: background → #5e5e5e (4.54:1); AAA: text → #00660e (7.22:1); AAA: background → #424242 (7.03:1)
- On black (#000000): 14.7:1 — 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/00fa21-a2bea9-ac4edf-1f2d27-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: "#00fa21" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.