# #6d91ab

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

## Values

- Hex: `#6d91ab`
- RGB: rgb(109, 145, 171)
- HSL: hsl(205, 27%, 55%)
- OKLCH: oklch(0.639 0.056 240.1)
- Relative luminance: 0.2644
- Nearest named color: Cavolo Nero (#72939e, Δ 2.29) — https://brandsweets.com/colors/cavolo-nero
- Moods: cool, muted
- Page: https://brandsweets.com/colors/6d91ab

## Tints & shades

- Tints (toward white): #7a9bb3, #8aa7bc, #97b1c3, #a4bbcb, #b5c7d4, #c1d1dc, #cedae3, #dbe4eb, #ecf0f4, #f9fafb
- Shades (toward black): #5d85a2, #547892, #4a6b82, #415d71, #385061, #2d404e, #23333e, #1a252d, #11181d, #070b0d

## Harmonies

- Complementary: #ab876d
- Analogous: #6daba6, #6d72ab
- Triadic: #ab6d91, #91ab6d
- Split-complementary: #ab6d72, #aba66d
- Tetradic: #a66dab, #ab876d, #72ab6d

## Colors that go with #6d91ab

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 #6d91ab: 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 #6d91ab 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), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #6d91ab: 4 real palettes, including Hershey's's brand system and Ink & Paper, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #6d91ab in 5 real palettes, including Retro Pop and Diner, as the lead colour. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Diner (https://brandsweets.com/palettes/vivid#diner), Redfin (https://brandsweets.com/colors/brands/redfin-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #6d91ab: 8 real palettes, including Dusk and Open House, as the lead colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house), Gopro (https://brandsweets.com/colors/brands/gopro-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Plaid's brand system and Open House put Midnight Blue beside #6d91ab, as the supporting colour. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Open House (https://brandsweets.com/palettes/clean#open-house), SoFi (https://brandsweets.com/colors/brands/sofi-com), Ford (https://brandsweets.com/colors/brands/ford-com). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Gopro's brand system and Graphite put Orange beside #6d91ab, as the accent. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Graphite (https://brandsweets.com/palettes/technical#graphite), Campus (https://brandsweets.com/palettes/friendly#campus), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/orange
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #6d91ab: 5 real palettes, including Ink Wash and First Snow, as the lead colour. Seen in: Ink Wash (https://brandsweets.com/palettes/dark#ink-wash), First Snow (https://brandsweets.com/palettes/cool#first-snow), Crypto.com (https://brandsweets.com/colors/brands/crypto-com), Stone (https://brandsweets.com/palettes/neutral#stone). — https://brandsweets.com/colors/powderblue

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

- On white (#ffffff): 3.34:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #567b95 (4.5:1); AA: background → #262626 (4.53:1); AAA: text → #3f5b6e (7.16:1)
- On black (#000000): 6.29:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7a9bb3 (7.17:1)

## Curated palettes containing it

- **Dusty Blue** (wedding, cool, muted, calm) — #6f8faf, #b9c7d6, #d6b39c, #f9fafb, #26313d — Dusty blue and mist with a nude accent — the quiet wedding palette; nothing here competes with a photograph. — tool: https://brandsweets.com/palettes/new/6f8faf-b9c7d6-d6b39c-f9fafb-26313d — collection: https://brandsweets.com/palettes/wedding

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/6d91ab-9cafc4-df4e58-1f212d-e9f1f0?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: "#6d91ab" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.