# #77d421

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

## Values

- Hex: `#77d421`
- RGB: rgb(119, 212, 33)
- HSL: hsl(91, 73%, 48%)
- OKLCH: oklch(0.782 0.217 134.5)
- Relative luminance: 0.5112
- Nearest named color: Blinking Terminal (#66cc00, Δ 2.951) — https://brandsweets.com/colors/blinking-terminal
- Moods: vivid
- Page: https://brandsweets.com/colors/77d421

## Tints & shades

- Tints (toward white): #84df30, #91e246, #9ee65c, #abe972, #b8ec88, #c6f09e, #d3f3b4, #e0f7ca, #edfae0, #fafef6
- Shades (toward black): #6dc21e, #61ac1b, #579a18, #4b8415, #417312, #37610f, #2a4b0c, #203909, #142306, #0a1203

## Harmonies

- Complementary: #7d21d4
- Analogous: #d1d421, #21d424
- Triadic: #2177d4, #d42177
- Split-complementary: #2421d4, #d421d1
- Tetradic: #21d1d4, #7d21d4, #d42421

## Colors that go with #77d421

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

- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #77d421 — 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), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #77d421 in 8 real palettes, including Acer's brand system and Minecraft's brand system, as the text colour against it. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #77d421 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 #77d421: 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 Minecraft's brand system and MongoDB's brand system put Blue beside #77d421, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #77d421: 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 #77d421 in 3 real palettes, including 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), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Mustard Yellow** #ffdb58 [pool] — 3 real palettes, including Citrus Grove and Meadow put Mustard Yellow beside #77d421, as the accent. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Meadow (https://brandsweets.com/palettes/light#meadow), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard

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

- On white (#ffffff): 1.87:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4b8415 (4.55:1); AA: background → #4d4d4d (4.52:1); AAA: text → #37610f (7.29:1); AAA: background → #303030 (7.05:1)
- On black (#000000): 11.22:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Monster Energy** — accent #6bd41a (Δ 1.15) — https://brandsweets.com/colors/brands/monsterenergy-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/77d421-acbea2-534edf-202d1f-f1f1e9?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: "#77d421" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.