# #439d8d

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

## Values

- Hex: `#439d8d`
- RGB: rgb(67, 157, 141)
- HSL: hsl(169, 40%, 44%)
- OKLCH: oklch(0.637 0.089 179.8)
- Relative luminance: 0.2723
- Nearest named color: Baltic (#279d9f, Δ 2.931) — https://brandsweets.com/colors/baltic
- Moods: neutral
- Page: https://brandsweets.com/colors/439d8d

## Tints & shades

- Tints (toward white): #4baf9d, #5ebaa9, #70c2b3, #86cbbe, #97d3c8, #a9dad1, #bfe3dd, #d1ebe6, #e6f4f2, #f8fcfb
- Shades (toward black): #3d8f80, #378173, #317266, #2b6459, #25564d, #1f4740, #183933, #122b26, #0c1d1a, #060e0d

## Harmonies

- Complementary: #9d4354
- Analogous: #439d60, #43819d
- Triadic: #8d439d, #9d8d43
- Split-complementary: #9d4381, #9d6043
- Tetradic: #60439d, #9d4354, #819d43

## Colors that go with #439d8d

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 #439d8d: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), N26 (https://brandsweets.com/colors/brands/n26-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #439d8d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Wellness (https://brandsweets.com/palettes/warm#wellness), Atelier (https://brandsweets.com/palettes/elegant#atelier), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Rain Garden and Estate put Blush Pink beside #439d8d, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Estate (https://brandsweets.com/palettes/luxury#estate), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding). — https://brandsweets.com/colors/blush-pink
- **Crimson** #dc143c [pool] — Crimson is paired with #439d8d in 7 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #439d8d: 8 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
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #439d8d, as that palette's text colour. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Ford (https://brandsweets.com/colors/brands/ford-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #439d8d in 7 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent. Seen in: Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Confluent (https://brandsweets.com/colors/brands/confluent-io), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #439d8d: 4 real palettes, including Fintech Trust and Olympics's brand system, as the supporting colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Olympics (https://brandsweets.com/colors/brands/olympics-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 3.26:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #378173 (4.62:1); AA: background → #262626 (4.65:1); AAA: text → #296056 (7.24:1)
- On black (#000000): 6.45:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #48a896 (7.32:1)

## Curated palettes containing it

- **Coastal** (cool, light, clean) — #2a9d8f, #8ecae6, #e9c46a, #f7fafc, #1a2b3c — Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water. — tool: https://brandsweets.com/palettes/new/2a9d8f-8ecae6-e9c46a-f7fafc-1a2b3c — collection: https://brandsweets.com/palettes/cool
- **Diner** (retro, vivid, playful, bold) — #e63946, #2a9d8f, #f4d35e, #fffdf5, #1d1d1b — Cherry red, mint-teal and butter yellow — chrome-and-vinyl retro; the red does the work, the teal cools it. — tool: https://brandsweets.com/palettes/new/e63946-2a9d8f-f4d35e-fffdf5-1d1d1b — collection: https://brandsweets.com/palettes/retro

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/439d8d-a2bebc-d459ab-1f2a2d-e9f1ec?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: "#439d8d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.