# #648fa0

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

## Values

- Hex: `#648fa0`
- RGB: rgb(100, 143, 160)
- HSL: hsl(197, 24%, 51%)
- OKLCH: oklch(0.625 0.053 224.5)
- Relative luminance: 0.2489
- Nearest named color: Cavolo Nero (#72939e, Δ 2.197) — https://brandsweets.com/colors/cavolo-nero
- Moods: cool, muted
- Page: https://brandsweets.com/colors/648fa0

## Tints & shades

- Tints (toward white): #749aaa, #81a4b1, #90afbb, #a0bac5, #b0c6cf, #bdcfd6, #ccdae0, #dce6ea, #e9eff1, #f9fafb
- Shades (toward black): #598191, #517685, #486875, #3e5a65, #364f59, #2d4149, #233339, #192529, #11191c, #080b0d

## Harmonies

- Complementary: #a07564
- Analogous: #64a093, #6471a0
- Triadic: #a0648f, #8fa064
- Split-complementary: #a06471, #a09364
- Tetradic: #9364a0, #a07564, #71a064

## Colors that go with #648fa0

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 #648fa0: softer than #000 and cool enough to feel like part of the same palette. Seen in: Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), 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 #648fa0 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Atelier (https://brandsweets.com/palettes/elegant#atelier), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #648fa0: 5 real palettes, including Ink & Paper and Hershey's's brand system, as the accent. Seen in: Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #648fa0 in 7 real palettes, including Diner and Retro Pop, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Redfin (https://brandsweets.com/colors/brands/redfin-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 #648fa0: 4 real palettes, including Telegram's brand system and Snowflake AI Data Cloud's brand system, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com), Astro (https://brandsweets.com/colors/brands/astro-build), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #648fa0: 13 real palettes, including Dusk and Peacock, as the lead colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Peacock (https://brandsweets.com/palettes/vivid#peacock), Campus (https://brandsweets.com/palettes/friendly#campus), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #648fa0 in 4 real palettes, including Ledger Dark and Noir Beauty, as the lead colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Open House (https://brandsweets.com/palettes/clean#open-house), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 10 real palettes, including Plaid's brand system and Ford's brand system put Midnight Blue beside #648fa0, as the supporting colour. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Ford (https://brandsweets.com/colors/brands/ford-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 3.51:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #557c8b (4.52:1); AA: background → #212121 (4.58:1); AAA: text → #405d68 (7.04:1)
- On black (#000000): 5.98:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #779dac (7.2:1)

## Curated palettes containing it

- **Still Water** (calm, cool, muted, light) — #5b8a9a, #a9c4cc, #e3d5b8, #f5f8f9, #1e2f36 — Dusty teal and mist with a sand accent — low chroma, low contrast between colours, high contrast for text: the recipe for calm. — tool: https://brandsweets.com/palettes/new/5b8a9a-a9c4cc-e3d5b8-f5f8f9-1e2f36 — collection: https://brandsweets.com/palettes/calm

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/648fa0-9cb4c4-df4e6b-1f232d-e9f1ef?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: "#648fa0" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.