# #399373

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

## Values

- Hex: `#399373`
- RGB: rgb(57, 147, 115)
- HSL: hsl(159, 44%, 40%)
- OKLCH: oklch(0.6 0.099 166.4)
- Relative luminance: 0.2298
- Nearest named color: Illuminati Green (#419168, Δ 1.472) — https://brandsweets.com/colors/illuminati-green
- Moods: neutral
- Page: https://brandsweets.com/colors/399373

## Tints & shades

- Tints (toward white): #42a985, #4fba95, #61c2a0, #77caad, #8dd3ba, #a3dbc8, #b9e4d5, #ccebe0, #e2f4ed, #f8fcfb
- Shades (toward black): #338468, #2f795f, #296a54, #255f4b, #1f5140, #1a4234, #15372b, #102820, #0b1d17, #060f0c

## Harmonies

- Complementary: #933959
- Analogous: #399347, #398593
- Triadic: #733993, #937339
- Split-complementary: #933985, #934739
- Tetradic: #473993, #933959, #859339

## Colors that go with #399373

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 #399373: softer than #000 and cool enough to feel like part of the same palette. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Coastal (https://brandsweets.com/palettes/cool#coastal), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #399373 — 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), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #399373: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/crimson
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #399373 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
- **Denim** #1560bd [pool] — Designers have shipped Denim with #399373: 6 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] — 5 real palettes, including Tide Pool and Paramount+'s brand system put Midnight Blue beside #399373, 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), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 5 real palettes, including Olympics's brand system and Farmers Market put Orange beside #399373, as the supporting colour. Seen in: Olympics (https://brandsweets.com/colors/brands/olympics-com), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/orange
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #399373 in 6 real palettes, including Subaru's brand system and Coinbase's brand system, as the supporting colour. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 3.75:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #338468 (4.52:1); AA: background → #1c1c1c (4.54:1); AAA: text → #27634e (7.04:1)
- On black (#000000): 5.6:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #42a985 (7.25:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/399373-a2beb8-d459c0-1f2c2d-e9f1eb?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: "#399373" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.