# #4ecaa9

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

## Values

- Hex: `#4ecaa9`
- RGB: rgb(78, 202, 169)
- HSL: hsl(164, 54%, 55%)
- OKLCH: oklch(0.761 0.12 172.3)
- Relative luminance: 0.4673
- Nearest named color: mediumaquamarine (#66cdaa, Δ 2.032) — https://brandsweets.com/colors/mediumaquamarine
- Moods: neutral
- Page: https://brandsweets.com/colors/4ecaa9

## Tints & shades

- Tints (toward white): #5ecfb1, #72d5ba, #81d9c2, #91deca, #a5e4d3, #b4e9db, #c4ede2, #d4f2ea, #e7f8f4, #f7fdfb
- Shades (toward black): #3bc4a0, #35b190, #2f9d80, #298970, #237660, #1c5e4d, #164b3d, #10372d, #0b231d, #05100d

## Harmonies

- Complementary: #ca4e6f
- Analogous: #4eca6b, #4eadca
- Triadic: #a94eca, #caa94e
- Split-complementary: #ca4ead, #ca6b4e
- Tetradic: #6b4eca, #ca4e6f, #adca4e

## Colors that go with #4ecaa9

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 #4ecaa9: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Canopy (https://brandsweets.com/palettes/cool#canopy), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony, pool: complementary] — Hot Pink sits directly opposite #4ecaa9 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — 5 real palettes, including Canva's brand system and Unity's brand system put Blue beside #4ecaa9, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Unity (https://brandsweets.com/colors/brands/unity-com), Uber (https://brandsweets.com/colors/brands/uber-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #4ecaa9 in 4 real palettes, including Tiffany & Co.'s brand system and Riot Games's brand system, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #4ecaa9, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Meadow (https://brandsweets.com/palettes/light#meadow), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #4ecaa9 in 4 real palettes, including Docker's brand system and Khan Academy's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Sandy Brown** #f4a460 [harmony, pool: triadic] — Sandy Brown completes a triad with #4ecaa9 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Ubereats (https://brandsweets.com/colors/brands/ubereats-com), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/sandybrown
- **Taupe** #483c32 [pool] — Taupe is paired with #4ecaa9 in 22 real palettes, including Crayon Box and Resort, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Resort (https://brandsweets.com/palettes/light#resort), Chime (https://brandsweets.com/colors/brands/chime-com), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 2.03:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #278269 (4.68:1); AA: background → #474747 (4.58:1); AAA: text → #1d6250 (7.2:1); AAA: background → #292929 (7.17:1)
- On black (#000000): 10.35:1 — 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/4ecaa9-a2beba-d459b5-1f2b2d-e9f1eb?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: "#4ecaa9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.