# #4defca

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

## Values

- Hex: `#4defca`
- RGB: rgb(77, 239, 202)
- HSL: hsl(166, 84%, 62%)
- OKLCH: oklch(0.859 0.143 174.2)
- Relative luminance: 0.6758
- Nearest named color: Aphrodite Aqua (#45e9c1, Δ 1.921) — https://brandsweets.com/colors/aphrodite-aqua
- Moods: vivid
- Page: https://brandsweets.com/colors/4defca

## Tints & shades

- Tints (toward white): #5ff1cf, #6ef2d3, #80f4d9, #8ef5dd, #a1f7e3, #b4f8e8, #c2faed, #d5fbf2, #e3fdf7, #f6fefc
- Shades (toward black): #31edc1, #14ebb9, #12d3a6, #10b790, #0d9b7a, #0b7f64, #09634e, #074b3b, #042f25, #02130f

## Harmonies

- Complementary: #ef4d73
- Analogous: #4def78, #4dc4ef
- Triadic: #ca4def, #efca4d
- Split-complementary: #ef4dc4, #ef784d
- Tetradic: #784def, #ef4d73, #c4ef4d

## Colors that go with #4defca

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 #4defca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Docker (https://brandsweets.com/colors/brands/docker-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #4defca in 4 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4defca: 4 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Salesforce (https://brandsweets.com/colors/brands/salesforce-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #4defca in 9 real palettes, including Astro's brand system and Mint Chip, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #4defca 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/hotpink
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #4defca — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom), Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/plum
- **Red** #ff0000 [pool] — Red is paired with #4defca in 3 real palettes, including Gatorade's brand system and Mattel's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Mattel (https://brandsweets.com/colors/brands/mattel-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Violet** #ee82ee [harmony: split] — Violet is a split-complement of #4defca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/violet

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

- On white (#ffffff): 1.45:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0b8367 (4.71:1); AA: background → #5c5c5c (4.62:1); AAA: text → #09634e (7.23:1); AAA: background → #404040 (7.17:1)
- On black (#000000): 14.52:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Astro** — accent #4bf3c8 (Δ 1.233) — https://brandsweets.com/colors/brands/astro-build
- **Formula 1** — primary #27f4d2 (Δ 1.655) — https://brandsweets.com/colors/brands/formula1-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4defca-a2bebb-d459b1-1f2a2d-e9f1ec?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: "#4defca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.