# #43787f

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

## Values

- Hex: `#43787f`
- RGB: rgb(67, 120, 127)
- HSL: hsl(187, 31%, 38%)
- OKLCH: oklch(0.539 0.058 206.6)
- Relative luminance: 0.1616
- Nearest named color: Calypso (#3d7188, Δ 3.031) — https://brandsweets.com/colors/calypso
- Moods: cool, muted
- Page: https://brandsweets.com/colors/43787f

## Tints & shades

- Tints (toward white): #4d8b93, #589ea7, #6ca9b2, #80b5bc, #94c1c7, #a8ccd1, #bcd8dc, #d0e4e6, #e4eff1, #f8fbfb
- Shades (toward black): #3e6e75, #376268, #31585e, #2a4c50, #254246, #20393c, #192c2f, #132325, #0c1617, #070d0d

## Harmonies

- Complementary: #7f4a43
- Analogous: #437f68, #435a7f
- Triadic: #7f4378, #787f43
- Split-complementary: #7f435a, #7f6843
- Tetradic: #68437f, #7f4a43, #5a7f43

## Colors that go with #43787f

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 #43787f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Gusto (https://brandsweets.com/colors/brands/gusto-com), N26 (https://brandsweets.com/colors/brands/n26-com), Campus (https://brandsweets.com/palettes/friendly#campus), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/charcoal
- **Rust** #b7410e [harmony, pool: complementary] — Rust sits directly opposite #43787f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. 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
- **Amber** #ffbf00 [pool] — Amber is paired with #43787f in 4 real palettes, including Beach Hut and Lemon Squeezy's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wired (https://brandsweets.com/colors/brands/wired-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Forest Floor and Darkroom put Champagne beside #43787f, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #43787f: 6 real palettes, including Ink & Paper and Fintech Trust, as the accent. Seen in: Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Intel (https://brandsweets.com/colors/brands/intel-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #43787f: 7 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), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #43787f in 11 real palettes, including Redfin's brand system and Gemstone, as the lead colour. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #43787f: 5 real palettes, including Deep Water and Warp's brand system, as the lead colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Warp (https://brandsweets.com/colors/brands/warp-dev), Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.96:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #355f64 (7.07:1)
- On black (#000000): 4.23:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #467e86 (4.59:1); AA: background → #f5f5f5 (4.55:1); AAA: text → #5ba0a9 (7.05:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/43787f-a2b8be-df4e83-1f262d-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: "#43787f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.