# #645a3f

A color — warm, muted, editorial, elegant. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#645a3f`
- RGB: rgb(100, 90, 63)
- HSL: hsl(44, 23%, 32%)
- OKLCH: oklch(0.47 0.043 90.1)
- Relative luminance: 0.1038
- Nearest named color: Cypress (#585d40, Δ 2.024) — https://brandsweets.com/colors/cypress
- Moods: warm, muted, editorial, elegant
- Page: https://brandsweets.com/colors/645a3f

## Tints & shades

- Tints (toward white): #7a6e4d, #8d7f58, #a19268, #ad9f7b, #baaf91, #c8bfa7, #d4cdba, #e2ddd0, #edebe3, #fbfaf9
- Shades (toward black): #5b5239, #524933, #4b442f, #423b29, #383323, #2f2a1d, #262218, #1f1c14, #16140e, #0d0b08

## Harmonies

- Complementary: #3f4964
- Analogous: #64483f, #5c643f
- Triadic: #3f645a, #5a3f64
- Split-complementary: #3f5c64, #483f64
- Tetradic: #3f6448, #3f4964, #643f5c

## Colors that go with #645a3f

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 #645a3f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Pampers (https://brandsweets.com/colors/brands/pampers-com), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Slate Blue** #6a5acd [harmony, pool: complementary] — Slate Blue sits directly opposite #645a3f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/slateblue
- **Champagne** #f7e7ce [pool] — 6 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #645a3f. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Darkroom (https://brandsweets.com/palettes/muted#darkroom), 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 #645a3f: 6 real palettes, including Clay & Linen and Desert Road, as the lead colour. Seen in: Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Bakery (https://brandsweets.com/palettes/warm#bakery), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #645a3f in 4 real palettes, including Gemstone and Codecademy's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #645a3f: 6 real palettes, including HP's brand system and Intel's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), 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
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #645a3f in 4 real palettes, including Undergrowth and Console Light, as the lead colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Console Light (https://brandsweets.com/palettes/technical#console-light), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/mediumseagreen
- **Orange** #ffa500 [pool] — 4 real palettes, including Graphite and Farmers Market put Orange beside #645a3f, as the accent. Seen in: Graphite (https://brandsweets.com/palettes/technical#graphite), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/orange

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

- On white (#ffffff): 6.83:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #61583d (7.07:1)
- On black (#000000): 3.08:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #817451 (4.55:1); AA: background → #d4d4d4 (4.61:1); AAA: text → #a3946c (7.01:1)

## Curated palettes containing it

- **Magazine Ochre** (editorial, warm, muted) — #b45309, #6b5b45, #0f766e, #f7f3ec, #1f1a14 — Ochre and walnut on unbleached stock, with teal as the counterpoint — a features-section palette with some heat in it. — tool: https://brandsweets.com/palettes/new/b45309-6b5b45-0f766e-f7f3ec-1f1a14 — collection: https://brandsweets.com/palettes/editorial

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- editorial: https://brandsweets.com/fonts/mood/editorial
- elegant: https://brandsweets.com/fonts/mood/elegant

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/645a3f-c4be9c-62b1cb-2b2d1f-f1ebe9?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: "#645a3f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.