# #218c53

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

## Values

- Hex: `#218c53`
- RGB: rgb(33, 140, 83)
- HSL: hsl(148, 62%, 34%)
- OKLCH: oklch(0.567 0.129 154.6)
- Relative luminance: 0.197
- Nearest named color: Center Field (#008b56, Δ 1.024) — https://brandsweets.com/colors/center-field
- Moods: vivid
- Page: https://brandsweets.com/colors/218c53

## Tints & shades

- Tints (toward white): #27a562, #2ec273, #3dd182, #5ad895, #73dea5, #8be4b5, #a8ebc7, #c1f0d7, #def7ea, #f7fdfa
- Shades (toward black): #1e804c, #1b7444, #18673d, #155b36, #124e2e, #104227, #0d3620, #0a2918, #071d11, #04110a

## Harmonies

- Complementary: #8c215a
- Analogous: #258c21, #218c89
- Triadic: #53218c, #8c5321
- Split-complementary: #89218c, #8c2125
- Tetradic: #21258c, #8c215a, #8c8921

## Colors that go with #218c53

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 #218c53: 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), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #218c53: 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), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #218c53 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #218c53 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 #218c53: 4 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), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #218c53: 6 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] — 4 real palettes, including Paramount+'s brand system and Telehealth put Midnight Blue beside #218c53, as the supporting colour. Seen in: Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue
- **Taupe** #483c32 [pool] — Taupe is paired with #218c53 in 13 real palettes, including Subaru's brand system and Acer's brand system, as that palette's text colour. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Acer (https://brandsweets.com/colors/brands/acer-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 4.25:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1f844e (4.7:1); AA: background → #0f0f0f (4.51:1); AAA: text → #17633b (7.28:1)
- On black (#000000): 4.94:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #29ae67 (7.34:1)

## Brands using this color

- **Lemon Squeezy** — secondary #1e874c (Δ 1.618) — https://brandsweets.com/colors/brands/lemonsqueezy-com
- **Kia** — secondary #00884d (Δ 1.8) — https://brandsweets.com/colors/brands/kia-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/218c53-a2beb2-d259d4-1f2d2c-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: "#218c53" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.