# #398e66

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

## Values

- Hex: `#398e66`
- RGB: rgb(57, 142, 102)
- HSL: hsl(152, 43%, 39%)
- OKLCH: oklch(0.584 0.103 160.1)
- Relative luminance: 0.2118
- Nearest named color: Illuminati Green (#419168, Δ 1.18) — https://brandsweets.com/colors/illuminati-green
- Moods: neutral
- Page: https://brandsweets.com/colors/398e66

## Tints & shades

- Tints (toward white): #41a476, #4cb886, #62c094, #78c9a3, #8ed2b2, #a0d9bf, #b6e2cd, #ccebdc, #e2f3eb, #f8fcfa
- Shades (toward black): #34835e, #2f7554, #2a6a4c, #245b42, #20503a, #1a422f, #163727, #10281d, #0c1d15, #060f0a

## Harmonies

- Complementary: #8e3961
- Analogous: #398e3c, #398b8e
- Triadic: #66398e, #8e6639
- Split-complementary: #8e398b, #8e3c39
- Tetradic: #3c398e, #8e3961, #8b8e39

## Colors that go with #398e66

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 #398e66: 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), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #398e66: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. 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), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #398e66 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
- **Copper** #b87333 [pool] — Designers have shipped Copper with #398e66: 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), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #398e66: 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
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Paramount+'s brand system and Tide Pool put Midnight Blue beside #398e66, as the supporting colour. Seen in: Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Farmers Market and Olympics's brand system put Orange beside #398e66, as the accent. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Olympics (https://brandsweets.com/colors/brands/olympics-com), Graphite (https://brandsweets.com/palettes/technical#graphite), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/orange
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #398e66 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): 4.01:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #34835e (4.61:1); AA: background → #141414 (4.59:1); AAA: text → #276247 (7.18:1)
- On black (#000000): 5.24:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #43a879 (7.12:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/398e66-a2beb4-d459ce-1f2d2d-e9f1ea?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: "#398e66" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.