# #646c5a

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

## Values

- Hex: `#646c5a`
- RGB: rgb(100, 108, 90)
- HSL: hsl(87, 9%, 39%)
- OKLCH: oklch(0.519 0.029 126.9)
- Relative luminance: 0.1417
- Nearest named color: Italian Basil (#5f6957, Δ 1.246) — https://brandsweets.com/colors/italian-basil
- Moods: muted, minimal
- Page: https://brandsweets.com/colors/646c5a

## Tints & shades

- Tints (toward white): #747d68, #838d77, #929b87, #a1a998, #b1b7a9, #bdc3b7, #ccd1c7, #dcdfd8, #ebece9, #fafaf9
- Shades (toward black): #5d6454, #52594a, #4b5143, #40453a, #393d33, #2e322a, #272a23, #1c1f1a, #151613, #0a0b09

## Harmonies

- Complementary: #635a6c
- Analogous: #6c6c5a, #5b6c5a
- Triadic: #5a646c, #6c5a64
- Split-complementary: #5a5b6c, #6c5a6c
- Tetradic: #5a6c6c, #635a6c, #6c5a5b

## Colors that go with #646c5a

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 that reads cleanly against #646c5a without the hard edge of pure #000. Seen in: Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Canopy (https://brandsweets.com/palettes/cool#canopy), Campus (https://brandsweets.com/palettes/friendly#campus), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Champagne** #f7e7ce [pool] — 6 real palettes, including BrandSweets's brand system and Forest Floor put Champagne beside #646c5a. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #646c5a: 7 real palettes, including Clay & Linen and Riverbed, as the lead colour. Seen in: Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #646c5a in 6 real palettes, including Gemstone and Five Guys's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #646c5a: 7 real palettes, including Campus and Intel's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), 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). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #646c5a: 4 real palettes, including Newsprint and Fireside, as the lead colour. Seen in: Newsprint (https://brandsweets.com/palettes/editorial#newsprint), Fireside (https://brandsweets.com/palettes/dark#fireside), Trader Joe's (https://brandsweets.com/colors/brands/traderjoes-com), Chipotle (https://brandsweets.com/colors/brands/chipotle-com). — https://brandsweets.com/colors/firebrick
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #646c5a in 6 real palettes, including Mid-Century and Harvest, as the accent. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Harvest (https://brandsweets.com/palettes/warm#harvest), Fireside (https://brandsweets.com/palettes/dark#fireside), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #646c5a in 4 real palettes, including Undergrowth and Indigo SaaS, as the lead colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Console Light (https://brandsweets.com/palettes/technical#console-light), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/mediumseagreen

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

- On white (#ffffff): 5.48:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #52594a (7.27:1)
- On black (#000000): 3.83:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6f7864 (4.55:1); AA: background → #ebebeb (4.59:1); AAA: text → #909985 (7.08:1)

## Fonts for this mood

- minimal: https://brandsweets.com/fonts/mood/minimal

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/646c5a-aebea2-4e53df-212d1f-f1f1e9?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: "#646c5a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.