# #308d66

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

## Values

- Hex: `#308d66`
- RGB: rgb(48, 141, 102)
- HSL: hsl(155, 49%, 37%)
- OKLCH: oklch(0.578 0.107 161.9)
- Relative luminance: 0.2064
- Nearest named color: Elf (#1b8a6b, Δ 1.716) — https://brandsweets.com/colors/elf
- Moods: neutral
- Page: https://brandsweets.com/colors/308d66

## Tints & shades

- Tints (toward white): #38a377, #40ba87, #54c496, #6bcca4, #85d5b4, #9cddc2, #b3e5d0, #caedde, #e1f5ec, #f7fcfa
- Shades (toward black): #2c815e, #277253, #23674a, #1f5b42, #1b503a, #16412f, #123527, #0e2a1e, #091b13, #050f0b

## Harmonies

- Complementary: #8d3057
- Analogous: #308d38, #30858d
- Triadic: #66308d, #8d6630
- Split-complementary: #8d3085, #8d3830
- Tetradic: #38308d, #8d3057, #858d30

## Colors that go with #308d66

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 #308d66: 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 #308d66: 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 #308d66 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 #308d66: 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 #308d66: 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 #308d66, 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 #308d66, 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 #308d66 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): 4.1:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2e8561 (4.52:1); AA: background → #121212 (4.57:1); AAA: text → #226348 (7.13:1)
- On black (#000000): 5.13:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3bab7c (7.3:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/308d66-a2beb6-d459c8-1f2d2d-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: "#308d66" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.