# #57ef5a

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

## Values

- Hex: `#57ef5a`
- RGB: rgb(87, 239, 90)
- HSL: hsl(121, 83%, 64%)
- OKLCH: oklch(0.841 0.23 143.5)
- Relative luminance: 0.645
- Nearest named color: Becquerel (#4bec13, Δ 3.911) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/57ef5a

## Tints & shades

- Tints (toward white): #65f167, #78f27a, #86f488, #98f59a, #a6f7a8, #b4f8b5, #c7fac8, #d5fbd6, #e8fde8, #f6fef6
- Shades (toward black): #3bed3e, #1fea22, #14d717, #11bb14, #0f9f11, #0c830e, #0a670b, #074b08, #042f05, #021302

## Harmonies

- Complementary: #ef57ed
- Analogous: #a1ef57, #57efa6
- Triadic: #5a57ef, #ef5a57
- Split-complementary: #a657ef, #ef57a1
- Tetradic: #57a1ef, #ef57ed, #efa657

## Colors that go with #57ef5a

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 #57ef5a in 5 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), Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #57ef5a 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
- **Blue** #0000ff [pool] — 3 real palettes, including MongoDB's brand system and Robinhood's brand system put Blue beside #57ef5a, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #57ef5a: 3 real palettes, including 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), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #57ef5a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Lilac** #c8a2c8 [harmony: split] — Lilac is a split-complement of #57ef5a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lilac
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #57ef5a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #57ef5a in two real palettes: Learning App and Citrus Grove, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange

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

- On white (#ffffff): 1.51:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0d870f (4.68:1); AA: background → #595959 (4.64:1); AAA: text → #0a670b (7.1:1); AAA: background → #3d3d3d (7.19:1)
- On black (#000000): 13.9:1 — 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/57ef5a-a2bea6-9b4edf-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: "#57ef5a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.