# #28fb41

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

## Values

- Hex: `#28fb41`
- RGB: rgb(40, 251, 65)
- HSL: hsl(127, 96%, 57%)
- OKLCH: oklch(0.861 0.27 143.9)
- Relative luminance: 0.6983
- Nearest named color: Cathode Green (#00ff55, Δ 1.4) — https://brandsweets.com/colors/cathode-green
- Moods: vivid
- Page: https://brandsweets.com/colors/28fb41

## Tints & shades

- Tints (toward white): #3cfb52, #50fb64, #64fc76, #78fc87, #91fd9e, #a5fdaf, #b9fec1, #cdfed3, #e1fee4, #f5fff6
- Shades (toward black): #0ffa2b, #05e61f, #04cd1c, #04b418, #039b15, #037d11, #02640d, #024b0a, #012d06, #001403

## Harmonies

- Complementary: #fb28e2
- Analogous: #79fb28, #28fbaa
- Triadic: #4128fb, #fb4128
- Split-complementary: #aa28fb, #fb2879
- Tetradic: #2879fb, #fb28e2, #fbaa28

## Colors that go with #28fb41

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 #28fb41 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 #28fb41: 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 #28fb41: 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 #28fb41, 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 #28fb41: 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 #28fb41: 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 #28fb41 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 #28fb41 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/salmon

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

- On white (#ffffff): 1.4:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #038712 (4.69:1); AA: background → #5e5e5e (4.62:1); AAA: text → #02640d (7.42:1); AAA: background → #424242 (7.16:1)
- On black (#000000): 14.97:1 — 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/28fb41-a2bea8-aa4edf-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: "#28fb41" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.