# #63d990

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

## Values

- Hex: `#63d990`
- RGB: rgb(99, 217, 144)
- HSL: hsl(143, 61%, 62%)
- OKLCH: oklch(0.799 0.15 154)
- Relative luminance: 0.5429
- Nearest named color: Electric Lettuce (#7bd181, Δ 2.641) — https://brandsweets.com/colors/electric-lettuce
- Moods: vivid
- Page: https://brandsweets.com/colors/63d990

## Tints & shades

- Tints (toward white): #73dd9c, #80e0a5, #90e4b0, #9ce7b9, #adebc5, #bdefd0, #caf2d9, #daf6e5, #e6f9ee, #f7fdf9
- Shades (toward black): #4ad37f, #32cd6d, #2db962, #27a055, #218748, #1b6f3b, #15562e, #104223, #0a2916, #041009

## Harmonies

- Complementary: #d963ac
- Analogous: #71d963, #63d9cb
- Triadic: #9063d9, #d99063
- Split-complementary: #cb63d9, #d96371
- Tetradic: #6371d9, #d963ac, #d9cb63

## Colors that go with #63d990

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #63d990: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Canopy (https://brandsweets.com/palettes/cool#canopy), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Minecraft's brand system and Unity's brand system put Blue beside #63d990, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #63d990 in 4 real palettes, including Wise's brand system and Formula 1's brand system, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #63d990: 4 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), Astro (https://brandsweets.com/colors/brands/astro-build), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Fresh Juice and Citrus Grove put Mustard Yellow beside #63d990, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Meadow (https://brandsweets.com/palettes/light#meadow), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #63d990 in 4 real palettes, including Docker's brand system and Brilliant's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #63d990 in 15 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), Chime (https://brandsweets.com/colors/brands/chime-com), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #63d990 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

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

- On white (#ffffff): 1.77:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #218748 (4.54:1); AA: background → #4f4f4f (4.63:1); AAA: text → #186334 (7.31:1); AAA: background → #333333 (7.13:1)
- On black (#000000): 11.86:1 — 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/63d990-a2beb0-c859d4-1f2d2b-eaf1e9?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: "#63d990" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.