# #637e4e

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

## Values

- Hex: `#637e4e`
- RGB: rgb(99, 126, 78)
- HSL: hsl(94, 24%, 40%)
- OKLCH: oklch(0.559 0.077 132.3)
- Relative luminance: 0.1812
- Nearest named color: Beyond the Pines (#688049, Δ 1.18) — https://brandsweets.com/colors/beyond-the-pines
- Moods: muted
- Page: https://brandsweets.com/colors/637e4e

## Tints & shades

- Tints (toward white): #729159, #81a267, #8eac77, #9eb78a, #adc39d, #bdcfb0, #cddac3, #dae4d3, #eaefe6, #fafbf9
- Shades (toward black): #597246, #516840, #485c38, #405232, #36462b, #2c3923, #252f1d, #1b2315, #141910, #0a0d08

## Harmonies

- Complementary: #694e7e
- Analogous: #7b7e4e, #4e7e51
- Triadic: #4e637e, #7e4e63
- Split-complementary: #514e7e, #7e4e7b
- Tetradic: #4e7b7e, #694e7e, #7e514e

## Colors that go with #637e4e

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 body-text near-black for #637e4e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. 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), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/charcoal
- **Medium Purple** #9370db [harmony, pool: complementary] — Medium Purple sits directly opposite #637e4e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/mediumpurple
- **Blue** #0000ff [pool] — 4 real palettes, including Kia's brand system and Warp's brand system put Blue beside #637e4e, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Rolex (https://brandsweets.com/colors/brands/rolex-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Burlywood** #deb887 [pool] — Burlywood is paired with #637e4e in 4 real palettes, including Coffee Bar and Converse's brand system, as the accent. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Converse (https://brandsweets.com/colors/brands/converse-com), Coastal (https://brandsweets.com/palettes/cool#coastal), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/burlywood
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Forest Floor and Woodsmoke put Champagne beside #637e4e, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #637e4e: 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), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #637e4e in 6 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour. 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), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #637e4e: 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

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

- On white (#ffffff): 4.54:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #4a5f3a (7.03:1)
- On black (#000000): 4.62:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7ea064 (7.1:1)

## Curated palettes containing it

- **Mushroom** (earthy, neutral, muted, minimal) — #8b7b6b, #c4b8a8, #6a7f5a, #f7f4ef, #2f2a25 — Taupe, oat and a sage accent — the quiet earth palette: almost neutral, with just enough colour to feel alive. — tool: https://brandsweets.com/palettes/new/8b7b6b-c4b8a8-6a7f5a-f7f4ef-2f2a25 — collection: https://brandsweets.com/palettes/earthy

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/637e4e-abbea2-5a4edf-1f2d1f-f0f1e9?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: "#637e4e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.