# #237a57

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

## Values

- Hex: `#237a57`
- RGB: rgb(35, 122, 87)
- HSL: hsl(156, 55%, 31%)
- OKLCH: oklch(0.519 0.099 162.2)
- Relative luminance: 0.1496
- Nearest named color: Greasy Greens (#117755, Δ 1.355) — https://brandsweets.com/colors/greasy-greens
- Moods: neutral
- Page: https://brandsweets.com/colors/237a57

## Tints & shades

- Tints (toward white): #2c966c, #32ae7d, #3dc790, #59cfa0, #75d7b0, #8cdebd, #a8e6cd, #c4eedd, #dbf5eb, #f7fdfa
- Shades (toward black): #206f4f, #1e674a, #1a5b41, #174f39, #154733, #113b2a, #0e2f22, #0a2419, #081c14, #05100b

## Harmonies

- Complementary: #7b2446
- Analogous: #247b2c, #24727b
- Triadic: #58247b, #7b5824
- Split-complementary: #7b2472, #7b2c24
- Tetradic: #2c247b, #7b2446, #727b24

## Colors that go with #237a57

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 #237a57: softer than #000 and cool enough to feel like part of the same palette. Seen in: Stanley (https://brandsweets.com/colors/brands/stanley1913-com), 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). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #237a57: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #237a57 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 Warp's brand system and Kia's brand system put Blue beside #237a57, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Kia (https://brandsweets.com/colors/brands/kia-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #237a57: 4 real palettes, including Clay & Linen and Wellness, as the lead colour. Seen in: Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Wellness (https://brandsweets.com/palettes/warm#wellness), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #237a57: 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
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #237a57 in 6 real palettes, including Coinbase's brand system and Subaru's brand system, as the lead colour. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Subaru (https://brandsweets.com/colors/brands/subaru-com), Xbox (https://brandsweets.com/colors/brands/xbox-com), GitHub (https://brandsweets.com/colors/brands/github). — https://brandsweets.com/colors/royalblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #237a57: 8 real palettes, including Riverbed and Forest Floor, as the supporting colour. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch). — https://brandsweets.com/colors/sage-green

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

- On white (#ffffff): 5.26:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1d6347 (7.17:1)
- On black (#000000): 3.99:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #278660 (4.67:1); AA: background → #f0f0f0 (4.62:1); AAA: text → #31aa7a (7.16:1)

## Brands using this color

- **BrandSweets** — success #2f7d51 (Δ 1.649) — https://brandsweets.com/colors/brands/brandsweets
- **Shopify** — primary #008060 (Δ 1.927) — https://brandsweets.com/colors/brands/shopify

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/237a57-a2beb6-d459c6-1f2d2d-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: "#237a57" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.