# #647caf

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

## Values

- Hex: `#647caf`
- RGB: rgb(100, 124, 175)
- HSL: hsl(221, 32%, 54%)
- OKLCH: oklch(0.588 0.084 264.6)
- Relative luminance: 0.2022
- Nearest named color: Flood (#6677bb, Δ 2.614) — https://brandsweets.com/colors/flood
- Moods: cool, muted
- Page: https://brandsweets.com/colors/647caf

## Tints & shades

- Tints (toward white): #7287b6, #8296bf, #90a1c6, #a1afce, #aebbd5, #bcc6dc, #cdd4e5, #dae0ec, #ebeef5, #f8f9fc
- Shades (toward black): #556ea5, #4c6394, #445883, #3b4d72, #324162, #2a3651, #212b40, #18202f, #10141e, #07090d

## Harmonies

- Complementary: #af9764
- Analogous: #64a1af, #7264af
- Triadic: #af647c, #7caf64
- Split-complementary: #af7264, #a1af64
- Tetradic: #af64a1, #af9764, #64af72

## Colors that go with #647caf

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 #647caf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #647caf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion), Dusk (https://brandsweets.com/palettes/cool#dusk), Atelier (https://brandsweets.com/palettes/elegant#atelier), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #647caf — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Intel (https://brandsweets.com/colors/brands/intel-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #647caf in 9 real palettes, including Beach Hut and Wired's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wired (https://brandsweets.com/colors/brands/wired-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Qualcomm's brand system and Activision's brand system put Blue beside #647caf, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Activision (https://brandsweets.com/colors/brands/activision-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Pixar (https://brandsweets.com/colors/brands/pixar-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #647caf: 8 real palettes, including Fintech Trust and Hershey's's brand system, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #647caf in 11 real palettes, including Retro Pop and Marvel's brand system, as the lead colour. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Marvel (https://brandsweets.com/colors/brands/marvel-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #647caf: 6 real palettes, including Astro's brand system and Telegram's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.16:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5d76ac (4.51:1); AA: background → #0f0f0f (4.6:1); AAA: text → #445883 (7.07:1)
- On black (#000000): 5.04:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8296bf (7.06:1)

## Brands using this color

- **Plaid** — primary #6f80b1 (Δ 1.94) — https://brandsweets.com/colors/brands/plaid-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/647caf-9ca4c4-df6b4e-211f2d-e9eff1?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: "#647caf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.