# #178c83

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

## Values

- Hex: `#178c83`
- RGB: rgb(23, 140, 131)
- HSL: hsl(175, 72%, 32%)
- OKLCH: oklch(0.579 0.096 186.6)
- Relative luminance: 0.2058
- Nearest named color: Go Go Green (#008a7d, Δ 1.212) — https://brandsweets.com/colors/go-go-green
- Moods: vivid
- Page: https://brandsweets.com/colors/178c83

## Tints & shades

- Tints (toward white): #1cab9f, #20c5b8, #2cddce, #47e1d4, #65e6db, #84ebe2, #9fefe9, #bdf4f0, #d8f9f6, #f6fefd
- Shades (toward black): #157f76, #13726a, #116962, #0f5c56, #0d4f49, #0b423d, #093531, #072c29, #051f1d, #031210

## Harmonies

- Complementary: #8c1721
- Analogous: #178c48, #175b8c
- Triadic: #83178c, #8c8317
- Split-complementary: #8c175b, #8c4817
- Tetradic: #48178c, #8c1721, #5b8c17

## Colors that go with #178c83

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 #178c83: softer than #000 and cool enough to feel like part of the same palette. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Coastal (https://brandsweets.com/palettes/cool#coastal), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #178c83 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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 [harmony, pool: complementary] — Crimson sits directly opposite #178c83 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Diner (https://brandsweets.com/palettes/vivid#diner), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #178c83: 5 real palettes, including Intel's brand system and Fintech Trust, as the lead colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #178c83: 10 real palettes, including Peacock and Intel's brand system, as the supporting colour. Seen in: 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), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #178c83 in 4 real palettes, including Sapphire & Gold and Mid-Century, as the supporting colour. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Tide Pool and Paramount+'s brand system put Midnight Blue beside #178c83, as that palette's text colour. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Ford (https://brandsweets.com/colors/brands/ford-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #178c83: 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). — https://brandsweets.com/colors/rust

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

- On white (#ffffff): 4.11:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #15847a (4.55:1); AA: background → #121212 (4.56:1); AAA: text → #10605a (7.39:1)
- On black (#000000): 5.12:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1ba79b (7.05:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/178c83-a2bdbe-d4599f-1f282d-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: "#178c83" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.