# #397f55

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

## Values

- Hex: `#397f55`
- RGB: rgb(57, 127, 85)
- HSL: hsl(144, 38%, 36%)
- OKLCH: oklch(0.539 0.097 154.9)
- Relative luminance: 0.167
- Nearest named color: Amazon (#387b54, Δ 1.241) — https://brandsweets.com/colors/amazon
- Moods: neutral
- Page: https://brandsweets.com/colors/397f55

## Tints & shades

- Tints (toward white): #429463, #4ca971, #61b884, #76c194, #8bcba4, #a0d4b5, #b5dec5, #cee9d9, #e3f2e9, #f8fcfa
- Shades (toward black): #34744e, #2f6a47, #295b3d, #245136, #20462f, #1b3c28, #163121, #102318, #0b1910, #060e09

## Harmonies

- Complementary: #7f3963
- Analogous: #407f39, #397f78
- Triadic: #55397f, #7f5539
- Split-complementary: #78397f, #7f3940
- Tetradic: #39407f, #7f3963, #7f7839

## Colors that go with #397f55

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 #397f55: softer than #000 and cool enough to feel like part of the same palette. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), N26 (https://brandsweets.com/colors/brands/n26-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #397f55 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Xbox (https://brandsweets.com/colors/brands/xbox-com), Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace). — https://brandsweets.com/colors/royalblue
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #397f55 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Blue** #0000ff [pool] — 4 real palettes, including Kia's brand system and Warp's brand system put Blue beside #397f55, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Instacart (https://brandsweets.com/colors/brands/instacart-com), Rolex (https://brandsweets.com/colors/brands/rolex-com). — https://brandsweets.com/colors/blue
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Forest Floor and BrandSweets's brand system put Champagne beside #397f55, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #397f55: 5 real palettes, including Wellness and Riverbed, as the supporting colour. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Riverbed (https://brandsweets.com/palettes/muted#riverbed), 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 #397f55 in 7 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour. Seen in: Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Coinbase (https://brandsweets.com/colors/brands/coinbase), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #397f55: 7 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour. Seen in: 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), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.84:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2c6342 (7.07:1)
- On black (#000000): 4.34:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3a8257 (4.51:1); AA: background → #f7f7f7 (4.52:1); AAA: text → #4ca971 (7.22:1)

## Brands using this color

- **BrandSweets** — success #2f7d51 (Δ 1.202) — https://brandsweets.com/colors/brands/brandsweets
- **Asana** — accent #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/asana-com
- **Five Guys** — accent #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/fiveguys-com
- **Intel** — accent #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/intel-com
- **Jack Daniel's** — accent #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/jackdaniels-com
- **Netflix** — secondary #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/netflix
- **Paramount+** — accent #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/paramountplus-com
- **Subaru** — accent #468254 (Δ 1.616) — https://brandsweets.com/colors/brands/subaru-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/397f55-a2beb0-ca59d4-1f2d2b-eaf1e9?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: "#397f55" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.