# #4defa9

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

## Values

- Hex: `#4defa9`
- RGB: rgb(77, 239, 169)
- HSL: hsl(154, 84%, 62%)
- OKLCH: oklch(0.851 0.167 160.5)
- Relative luminance: 0.6618
- Nearest named color: Hyperpop Green (#17f9a6, Δ 3.162) — https://brandsweets.com/colors/hyperpop-green
- Moods: vivid
- Page: https://brandsweets.com/colors/4defa9

## Tints & shades

- Tints (toward white): #5ff1b2, #6ef2b9, #80f4c2, #8ef5c9, #a1f7d2, #b4f8db, #c2fae2, #d5fbeb, #e3fdf1, #f6fefa
- Shades (toward black): #31ed9b, #14eb8e, #12d380, #10b76f, #0d9b5e, #0b7f4d, #09633c, #074b2d, #042f1c, #02130b

## Harmonies

- Complementary: #ef4d93
- Analogous: #4def58, #4de5ef
- Triadic: #a94def, #efa94d
- Split-complementary: #ef4de5, #ef584d
- Tetradic: #584def, #ef4d93, #e5ef4d

## Colors that go with #4defa9

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 #4defa9 in 7 real palettes, including Astro's brand system and 7-Eleven's brand system, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #4defa9 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #4defa9: 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). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #4defa9 in 3 real palettes, including Formula 1's brand system and Wise's brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Wise (https://brandsweets.com/colors/brands/wise-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4defa9: 3 real palettes, including Prime Video's brand system and Astro's brand system, as the supporting colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #4defa9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #4defa9 in two real palettes: Neon's brand system and Canopy, as the supporting colour. Seen in: Neon (https://brandsweets.com/colors/brands/neon-tech), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/hunter-green
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #4defa9: two real palettes: Macaron and Steam's brand system, as the supporting colour. Seen in: Macaron (https://brandsweets.com/palettes/light#macaron), Steam (https://brandsweets.com/colors/brands/steampowered-com). — https://brandsweets.com/colors/powderblue

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

- On white (#ffffff): 1.48:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0c8852 (4.51:1); AA: background → #5c5c5c (4.53:1); AAA: text → #09633c (7.34:1); AAA: background → #404040 (7.03:1)
- On black (#000000): 14.24:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Prime Video** — accent #37f1a3 (Δ 1.465) — https://brandsweets.com/colors/brands/primevideo-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4defa9-a2beb5-d459ca-1f2d2d-e9f1ea?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: "#4defa9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.