# #644e6e

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

## Values

- Hex: `#644e6e`
- RGB: rgb(100, 78, 110)
- HSL: hsl(281, 17%, 37%)
- OKLCH: oklch(0.459 0.058 315.1)
- Relative luminance: 0.0928
- Nearest named color: Hibernation (#6f5166, Δ 2.689) — https://brandsweets.com/colors/hibernation
- Moods: cool, muted
- Page: https://brandsweets.com/colors/644e6e

## Tints & shades

- Tints (toward white): #745b80, #856892, #9379a0, #a28bac, #b2a0bb, #c1b1c8, #cfc3d5, #ded5e1, #ece7ee, #faf9fb
- Shades (toward black): #5c4865, #513f5a, #493951, #413348, #392c3f, #2e2433, #261e2a, #1e1721, #130f15, #0b080c

## Harmonies

- Complementary: #586e4e
- Analogous: #544e6e, #6e4e69
- Triadic: #6e644e, #4e6e64
- Split-complementary: #696e4e, #4e6e54
- Tetradic: #6e544e, #586e4e, #4e696e

## Colors that go with #644e6e

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #644e6e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Clinic (https://brandsweets.com/palettes/clean#clinic), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #644e6e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/seagreen
- **Copper** #b87333 [pool] — Designers have shipped Copper with #644e6e: 4 real palettes, including Dusk and Desert Road, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Bramble (https://brandsweets.com/palettes/muted#bramble), Bakery (https://brandsweets.com/palettes/warm#bakery). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #644e6e: 7 real palettes, including HP's brand system and Hinge's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #644e6e in 4 real palettes, including Console Light and Fintech Trust, as the accent. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Lufthansa's brand system and First Snow put Midnight Blue beside #644e6e, as the lead colour. Seen in: Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), FIFA (https://brandsweets.com/colors/brands/fifa-com), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #644e6e in 7 real palettes, including Console Light and GitHub's brand system, as the lead colour. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), GitHub (https://brandsweets.com/colors/brands/github), Stripe (https://brandsweets.com/colors/brands/stripe), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/royalblue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #644e6e: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 7.35:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.86:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #876a95 (4.53:1); AA: background → #cccccc (4.58:1); AAA: text → #a48eaf (7.07:1); AAA: background → #fafafa (7.04:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/644e6e-ba9fc1-b6cb62-2d1f2c-ebe9f1?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: "#644e6e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.