# #57cd13

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

## Values

- Hex: `#57cd13`
- RGB: rgb(87, 205, 19)
- HSL: hsl(98, 83%, 44%)
- OKLCH: oklch(0.75 0.228 138.1)
- Relative luminance: 0.4574
- Nearest named color: Blinking Terminal (#66cc00, Δ 1.071) — https://brandsweets.com/colors/blinking-terminal
- Moods: vivid
- Page: https://brandsweets.com/colors/57cd13

## Tints & shades

- Tints (toward white): #61e515, #73eb2d, #82ee44, #95f060, #a5f278, #b4f58f, #c7f7ab, #d7f9c2, #e9fcde, #f9fef6
- Shades (toward black): #4fbb11, #47a810, #40950e, #38830c, #30700a, #285d09, #204b07, #183805, #102503, #081302

## Harmonies

- Complementary: #8913cd
- Analogous: #b4cd13, #13cd2c
- Triadic: #1357cd, #cd1357
- Split-complementary: #2c13cd, #cd13b4
- Tetradic: #13b4cd, #8913cd, #cd2c13

## Colors that go with #57cd13

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

- **Blue** #0000ff [pool] — 4 real palettes, including Minecraft's brand system and Spotify's brand system put Blue beside #57cd13, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Taupe** #483c32 [pool] — Taupe is paired with #57cd13 in 8 real palettes, including Minecraft's brand system and WhatsApp's brand system, as the lead colour. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Acer (https://brandsweets.com/colors/brands/acer-com), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #57cd13 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 #57cd13: 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
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #57cd13: 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
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #57cd13 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 [harmony, pool: triadic] — Deep Sky Blue completes a triad with #57cd13 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Mustard Yellow** #ffdb58 [pool] — 3 real palettes, including Meadow and Citrus Grove put Mustard Yellow beside #57cd13, as the supporting colour. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard

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

- On white (#ffffff): 2.07:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3a870d (4.51:1); AA: background → #454545 (4.63:1); AAA: text → #2a6209 (7.37:1); AAA: background → #292929 (7.03:1)
- On black (#000000): 10.15:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Duolingo** — primary #58cc02 (Δ 0.348) — https://brandsweets.com/colors/brands/duolingo
- **Duolingo** — secondary #58cc02 (Δ 0.348) — https://brandsweets.com/colors/brands/duolingo

## Curated palettes containing it

- **Learning App** (playful, vivid, friendly) — #58cc02, #1cb0f6, #ff9600, #ffffff, #1c1c1c — Green, blue and orange at full saturation: the gamified-learning look, where every color is a reward. — tool: https://brandsweets.com/palettes/new/58cc02-1cb0f6-ff9600-ffffff-1c1c1c — collection: https://brandsweets.com/palettes/playful

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/57cd13-a9bea2-644edf-1f2d20-f0f1e9?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: "#57cd13" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.