# #428573

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

## Values

- Hex: `#428573`
- RGB: rgb(66, 133, 115)
- HSL: hsl(164, 34%, 39%)
- OKLCH: oklch(0.567 0.075 173.8)
- Relative luminance: 0.1917
- Nearest named color: Emerald Whispers (#2b8478, Δ 1.852) — https://brandsweets.com/colors/emerald-whispers
- Moods: muted
- Page: https://brandsweets.com/colors/428573

## Tints & shades

- Tints (toward white): #4c9a85, #58ad96, #6cb7a3, #81c1b0, #95cbbc, #a6d3c7, #bbddd4, #cfe7e1, #e4f2ee, #f8fcfb
- Shades (toward black): #3d7b6a, #366d5f, #316356, #2a554a, #254b41, #1e3e35, #19332c, #132621, #0d1b18, #070e0c

## Harmonies

- Complementary: #854254
- Analogous: #428551, #427585
- Triadic: #734285, #857342
- Split-complementary: #854275, #855142
- Tetradic: #514285, #854254, #758542

## Colors that go with #428573

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 #428573: softer than #000 and cool enough to feel like part of the same palette. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #428573 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] — 4 real palettes, including Forest Floor and Woodsmoke put Champagne beside #428573, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #428573: 6 real palettes, including Wellness and Riverbed, as the supporting colour. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #428573 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), Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #428573: 8 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
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #428573 in 5 real palettes, including Mid-Century and Sapphire & Gold, as the accent. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Paramount+'s brand system and Tide Pool put Midnight Blue beside #428573, as the supporting colour. Seen in: Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Discover (https://brandsweets.com/colors/brands/discover-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 4.34:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #408270 (4.52:1); AA: background → #0a0a0a (4.56:1); AAA: text → #2f6053 (7.19:1)
- On black (#000000): 4.83:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #51a48e (7.05:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/428573-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: "#428573" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.