# #637e6e

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

## Values

- Hex: `#637e6e`
- RGB: rgb(99, 126, 110)
- HSL: hsl(144, 12%, 44%)
- OKLCH: oklch(0.567 0.04 158.8)
- Relative luminance: 0.187
- Nearest named color: Ecological (#677f70, Δ 0.693) — https://brandsweets.com/colors/ecological
- Moods: muted
- Page: https://brandsweets.com/colors/637e6e

## Tints & shades

- Tints (toward white): #6e8c7a, #7e9a89, #8da597, #9eb3a6, #acbeb3, #bac9c0, #ccd7d0, #dae2dd, #ebefed, #f9fbfa
- Shades (toward black): #5a7264, #51675a, #485b50, #3f5046, #36453c, #2d3932, #242e28, #1b221e, #121714, #090b0a

## Harmonies

- Complementary: #7e6373
- Analogous: #657e63, #637e7b
- Triadic: #6e637e, #7e6e63
- Split-complementary: #7b637e, #7e6365
- Tetradic: #63657e, #7e6373, #7e7b63

## Colors that go with #637e6e

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 #637e6e: 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), Campus (https://brandsweets.com/palettes/friendly#campus), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Champagne** #f7e7ce [pool] — 6 real palettes, including Forest Floor and Woodsmoke put Champagne beside #637e6e, 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), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #637e6e: 6 real palettes, including Riverbed and Wellness, as the accent. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Wellness (https://brandsweets.com/palettes/warm#wellness), 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 #637e6e in 8 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), Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #637e6e: 8 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
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #637e6e: 4 real palettes, including Studio Grey and Spline's brand system, as the accent. Seen in: Studio Grey (https://brandsweets.com/palettes/minimal#studio-grey), Spline (https://brandsweets.com/colors/brands/spline-design), Notion (https://brandsweets.com/colors/brands/notion), Miro (https://brandsweets.com/colors/brands/miro-com). — https://brandsweets.com/colors/dodgerblue
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #637e6e in 5 real palettes, including Noir Beauty and Mid-Century, as the lead colour. Seen in: Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Harvest (https://brandsweets.com/palettes/warm#harvest), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/goldenrod
- **Rose Gold** #b76e79 [harmony: complementary] — Rose Gold sits directly opposite #637e6e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/rose-gold

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

- On white (#ffffff): 4.43:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #607b6b (4.62:1); AA: background → #080808 (4.52:1); AAA: text → #485b50 (7.27:1)
- On black (#000000): 4.74:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #819c8c (7.07:1)

## Curated palettes containing it

- **Riverbed** (earthy, muted, cool) — #5f7a6b, #a89f91, #b7742f, #f4f3ef, #22281f — Wet-stone green and pebble grey with a copper accent — an earth palette that leans cool, for outdoor and wellness. — tool: https://brandsweets.com/palettes/new/5f7a6b-a89f91-b7742f-f4f3ef-22281f — collection: https://brandsweets.com/palettes/earthy

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/637e6e-a2beb0-ca59d4-1f2d2b-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: "#637e6e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.