# #5b7f80

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

## Values

- Hex: `#5b7f80`
- RGB: rgb(91, 127, 128)
- HSL: hsl(182, 17%, 43%)
- OKLCH: oklch(0.57 0.041 198.2)
- Relative luminance: 0.1896
- Nearest named color: Blue Blood (#6b7f81, Δ 2.062) — https://brandsweets.com/colors/blue-blood
- Moods: cool, muted
- Page: https://brandsweets.com/colors/5b7f80

## Tints & shades

- Tints (toward white): #689192, #769c9e, #88a9aa, #97b4b5, #a8c1c2, #b7cccc, #c9d8d9, #d8e3e3, #eaf0f0, #f9fbfb
- Shades (toward black): #537374, #4a6768, #425c5c, #395051, #334748, #2a3b3c, #222f30, #192324, #111818, #080c0c

## Harmonies

- Complementary: #805c5b
- Analogous: #5b806f, #5b6c80
- Triadic: #805b7f, #7f805b
- Split-complementary: #805b6c, #806f5b
- Tetradic: #6f5b80, #805c5b, #6c805b

## Colors that go with #5b7f80

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 #5b7f80: 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: triadic] — Copper completes a triad with #5b7f80 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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 Coffee Bar put Champagne beside #5b7f80, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/champagne
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #5b7f80: 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 #5b7f80 in 9 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), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #5b7f80: 11 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
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #5b7f80: 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), Honda (https://brandsweets.com/colors/brands/honda-com), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #5b7f80 in 6 real palettes, including Mid-Century and Noir Beauty, as the accent. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod

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

- On white (#ffffff): 4.38:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #597c7d (4.56:1); AA: background → #0a0a0a (4.52:1); AAA: text → #425c5c (7.2:1)
- On black (#000000): 4.79:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #769c9e (7.02:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/5b7f80-a2babe-d45990-1f272d-e9f1ee?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: "#5b7f80" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.