# #658181

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

## Values

- Hex: `#658181`
- RGB: rgb(101, 129, 129)
- HSL: hsl(180, 12%, 45%)
- OKLCH: oklch(0.582 0.032 196.3)
- Relative luminance: 0.2005
- Nearest named color: Blue Blood (#6b7f81, Δ 0.928) — https://brandsweets.com/colors/blue-blood
- Moods: cool, muted
- Page: https://brandsweets.com/colors/658181

## Tints & shades

- Tints (toward white): #708f8f, #819c9c, #90a7a7, #9eb3b3, #afc0c0, #bdcbcb, #ccd7d7, #dae2e2, #ebefef, #f9fbfb
- Shades (toward black): #5c7575, #536a6a, #4a5e5e, #415353, #384747, #2d3939, #242e2e, #1b2222, #121717, #090b0b

## Harmonies

- Complementary: #816565
- Analogous: #658173, #657381
- Triadic: #816581, #818165
- Split-complementary: #816573, #817365
- Tetradic: #736581, #816565, #738165

## Colors that go with #658181

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 #658181: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: split] — Copper is a split-complement of #658181: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Wellness (https://brandsweets.com/palettes/warm#wellness), Atelier (https://brandsweets.com/palettes/elegant#atelier), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/copper
- **Champagne** #f7e7ce [pool] — 6 real palettes, including Forest Floor and Midnight Luxe put Champagne beside #658181, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/champagne
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #658181: 5 real palettes, including Ink & Paper and Intel's brand system, as the accent. Seen in: Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Intel (https://brandsweets.com/colors/brands/intel-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #658181 in 8 real palettes, including Retro Pop and Redfin's brand system, as the lead colour. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Redfin (https://brandsweets.com/colors/brands/redfin-com), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #658181: 12 real palettes, including Campus and Peacock, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Peacock (https://brandsweets.com/palettes/vivid#peacock), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #658181 in 6 real palettes, including Noir Beauty and Ledger Dark, as the lead colour. Seen in: Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Plaid's brand system and Tide Pool put Midnight Blue beside #658181, as the supporting colour. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 4.19:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #607b7b (4.55:1); AA: background → #0f0f0f (4.57:1); AAA: text → #485b5b (7.18:1)
- On black (#000000): 5.01:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #819c9c (7.17:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/658181-a2bbbe-d45994-1f272d-e9f1ed?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: "#658181" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.