# #437f71

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

## Values

- Hex: `#437f71`
- RGB: rgb(67, 127, 113)
- HSL: hsl(166, 31%, 38%)
- OKLCH: oklch(0.552 0.067 176.7)
- Relative luminance: 0.1756
- Nearest named color: Emerald Whispers (#2b8478, Δ 2.064) — https://brandsweets.com/colors/emerald-whispers
- Moods: muted
- Page: https://brandsweets.com/colors/437f71

## Tints & shades

- Tints (toward white): #4d9383, #58a795, #6cb2a1, #80bcae, #94c7bb, #a8d1c8, #bcdcd4, #d0e6e1, #e4f1ee, #f8fbfb
- Shades (toward black): #3e7568, #37685c, #315e53, #2a5047, #25463e, #203c35, #192f2a, #132521, #0c1715, #070d0c

## Harmonies

- Complementary: #7f4351
- Analogous: #437f53, #436f7f
- Triadic: #71437f, #7f7143
- Split-complementary: #7f436f, #7f5343
- Tetradic: #53437f, #7f4351, #6f7f43

## Colors that go with #437f71

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 #437f71: softer than #000 and cool enough to feel like part of the same palette. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #437f71: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gallery (https://brandsweets.com/palettes/editorial#gallery), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/rust
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #437f71 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Forest Floor and BrandSweets's brand system put Champagne beside #437f71, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #437f71: 6 real palettes, including Riverbed and Wellness, as the accent. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Wellness (https://brandsweets.com/palettes/warm#wellness), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #437f71 in 8 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour. Seen in: Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #437f71: 9 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #437f71: 4 real palettes, including Newsprint and Wendy's's brand system, as the lead colour. Seen in: Newsprint (https://brandsweets.com/palettes/editorial#newsprint), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Fireside (https://brandsweets.com/palettes/dark#fireside), Honda (https://brandsweets.com/colors/brands/honda-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 4.65:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #336156 (7.04:1)
- On black (#000000): 4.51:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #56a492 (7.12:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/437f71-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: "#437f71" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.