# #858ca3

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

## Values

- Hex: `#858ca3`
- RGB: rgb(133, 140, 163)
- HSL: hsl(226, 14%, 58%)
- OKLCH: oklch(0.642 0.035 272)
- Relative luminance: 0.2639
- Nearest named color: Cool Gray (#8c92ac, Δ 2.214) — https://brandsweets.com/colors/cool-gray
- Moods: cool, muted
- Page: https://brandsweets.com/colors/858ca3

## Tints & shades

- Tints (toward white): #9197ac, #9ca2b4, #a8adbd, #b3b8c6, #bfc3cf, #cbced8, #d6d9e0, #e2e4e9, #eeeff2, #f9fafb
- Shades (toward black): #767e98, #676f89, #5c637a, #4f5569, #44495a, #393d4c, #2c2f3a, #21232c, #14151a, #09090c

## Harmonies

- Complementary: #a39c85
- Analogous: #859ba3, #8d85a3
- Triadic: #a3858c, #8ca385
- Split-complementary: #a38d85, #9ba385
- Tetradic: #a3859b, #a39c85, #85a38d

## Colors that go with #858ca3

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 #858ca3: 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: split] — Copper is a split-complement of #858ca3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. 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
- **Denim** #1560bd [pool] — Designers have shipped Denim with #858ca3: 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 #858ca3, 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 #858ca3: 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
- **Taupe** #483c32 [pool] — Taupe is paired with #858ca3 in 22 real palettes, including Dusk and Typewriter, as the text colour against it. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Still Water (https://brandsweets.com/palettes/cool#still-water), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/taupe
- **Dark Goldenrod** #b8860b [harmony: complementary] — Dark Goldenrod sits directly opposite #858ca3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/darkgoldenrod
- **Blush Pink** #e8b4b8 [pool] — 3 real palettes, including Estate and Rain Garden put Blush Pink beside #858ca3, 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): 3.35:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6e7691 (4.5:1); AA: background → #262626 (4.52:1); AAA: text → #51576c (7.17:1)
- On black (#000000): 6.28:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #9197ac (7.23:1)

## 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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/858ca3-9ca1c4-df774e-221f2d-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: "#858ca3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.