# #28dc37

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

## Values

- Hex: `#28dc37`
- RGB: rgb(40, 220, 55)
- HSL: hsl(125, 72%, 51%)
- OKLCH: oklch(0.78 0.244 143.6)
- Relative luminance: 0.5191
- Nearest named color: Alarming Slime (#2ce335, Δ 2.015) — https://brandsweets.com/colors/alarming-slime
- Moods: vivid
- Page: https://brandsweets.com/colors/28dc37

## Tints & shades

- Tints (toward white): #3ee04b, #50e25c, #65e670, #7bea85, #91ed99, #a3f0a9, #b9f4be, #cff7d2, #e0fae2, #f6fef7
- Shades (toward black): #21ca2f, #1eb82b, #1aa226, #178c21, #147b1d, #106517, #0d4f12, #09390d, #062709, #031204

## Harmonies

- Complementary: #dc28cd
- Analogous: #73dc28, #28dc91
- Triadic: #3728dc, #dc3728
- Split-complementary: #9128dc, #dc2873
- Tetradic: #2873dc, #dc28cd, #dc9128

## Colors that go with #28dc37

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Taupe** #483c32 [pool] — Taupe is paired with #28dc37 in 8 real palettes, including 7-Eleven's brand system and WhatsApp's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Obsidian (https://brandsweets.com/colors/brands/obsidian-md). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #28dc37 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, pool: split] — Hot Pink is a split-complement of #28dc37: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — 3 real palettes, including MongoDB's brand system and Minecraft's brand system put Blue beside #28dc37, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #28dc37: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #28dc37 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #28dc37 in 3 real palettes, including Learning App and Playground, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #28dc37: 3 real palettes, including Learning App and Remix's brand system, as the supporting colour. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 1.84:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #168820 (4.59:1); AA: background → #4d4d4d (4.58:1); AAA: text → #106517 (7.25:1); AAA: background → #303030 (7.15:1)
- On black (#000000): 11.38:1 — 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/28dc37-a2bea7-a54edf-1f2d26-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: "#28dc37" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.