# #818fa7

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

## Values

- Hex: `#818fa7`
- RGB: rgb(129, 143, 167)
- HSL: hsl(218, 18%, 58%)
- OKLCH: oklch(0.647 0.039 261.2)
- Relative luminance: 0.271
- Nearest named color: Cool Gray (#8c92ac, Δ 1.929) — https://brandsweets.com/colors/cool-gray
- Moods: cool, muted
- Page: https://brandsweets.com/colors/818fa7

## Tints & shades

- Tints (toward white): #8d99b0, #99a4b8, #a5afc0, #b1bac9, #bdc4d1, #c9cfd9, #d5dae2, #e1e4ea, #edeff2, #f9fafb
- Shades (toward black): #72819d, #62728d, #58667e, #4b576c, #414b5d, #363f4e, #2a313c, #1f242d, #13161b, #080a0c

## Harmonies

- Complementary: #a79981
- Analogous: #81a2a7, #8681a7
- Triadic: #a7818f, #8fa781
- Split-complementary: #a78681, #a2a781
- Tetradic: #a781a2, #a79981, #81a786

## Colors that go with #818fa7

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 #818fa7: 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 #818fa7 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
- **Denim** #1560bd [pool] — Designers have shipped Denim with #818fa7: 6 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), Campus (https://brandsweets.com/palettes/friendly#campus), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Plaid's brand system and Open House put Midnight Blue beside #818fa7, as the supporting colour. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Open House (https://brandsweets.com/palettes/clean#open-house), First Snow (https://brandsweets.com/palettes/cool#first-snow), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #818fa7: 4 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), Stone (https://brandsweets.com/palettes/neutral#stone), Crypto.com (https://brandsweets.com/colors/brands/crypto-com). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #818fa7 in 4 real palettes, including Slate Workspace and Sephora's brand system, as the accent. Seen in: Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace), Sephora (https://brandsweets.com/colors/brands/sephora-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Elastic (https://brandsweets.com/colors/brands/elastic-co). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #818fa7 in 21 real palettes, including Dusk and Still Water, as the text colour against it. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Still Water (https://brandsweets.com/palettes/cool#still-water), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/taupe
- **Blush Pink** #e8b4b8 [pool] — 3 real palettes, including Estate and Rain Garden put Blush Pink beside #818fa7, as the accent. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/blush-pink

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

- On white (#ffffff): 3.27:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #667793 (4.54:1); AA: background → #262626 (4.63:1); AAA: text → #4b576c (7.29:1)
- On black (#000000): 6.42:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8a97ad (7.11:1)

## Curated palettes containing it

- **Ledger Dark** (dark, luxury, technical) — #c9a227, #7c8aa5, #34d399, #0c1222, #e8edf5 — Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy. — tool: https://brandsweets.com/palettes/new/c9a227-7c8aa5-34d399-0c1222-e8edf5 — collection: https://brandsweets.com/palettes/dark
- **Arctic** (clean, cool, minimal) — #0f1b2d, #7d93a8, #0ea5e9, #ffffff — Navy type on white with an ice-blue accent: crisp and corporate without going grey. — tool: https://brandsweets.com/palettes/new/0f1b2d-7d93a8-0ea5e9-ffffff — collection: https://brandsweets.com/palettes/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/818fa7-9ca6c4-df644e-201f2d-e9f0f1?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: "#818fa7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.