# #878bc4

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

## Values

- Hex: `#878bc4`
- RGB: rgb(135, 139, 196)
- HSL: hsl(236, 34%, 65%)
- OKLCH: oklch(0.655 0.085 280.7)
- Relative luminance: 0.276
- Nearest named color: Magic Carpet (#9488be, Δ 2.016) — https://brandsweets.com/colors/magic-carpet
- Moods: cool, muted
- Page: https://brandsweets.com/colors/878bc4

## Tints & shades

- Tints (toward white): #9295c9, #9fa3d0, #aaacd5, #b4b6da, #c1c4e1, #cccde6, #d6d7eb, #e0e1f0, #eeeef7, #f8f8fc
- Shades (toward black): #7378ba, #5e64b0, #4f55a1, #454a8c, #3b3f78, #2f3260, #25284b, #1b1d37, #111222, #07070e

## Harmonies

- Complementary: #c4c087
- Analogous: #87aac4, #a287c4
- Triadic: #c4878b, #8bc487
- Split-complementary: #c4a287, #aac487
- Tetradic: #c487aa, #c4c087, #87c4a2

## Colors that go with #878bc4

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 #878bc4: 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), Plaid (https://brandsweets.com/colors/brands/plaid-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #878bc4 in 6 real palettes, including Blueprint and Ahrefs's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Copper** #b87333 [pool] — Designers have shipped Copper with #878bc4: 4 real palettes, including Dusk and Atelier, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Atelier (https://brandsweets.com/palettes/elegant#atelier), Notion (https://brandsweets.com/colors/brands/notion), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #878bc4: 8 real palettes, including Blueprint and Telegram's brand system, as the lead colour. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Telegram (https://brandsweets.com/colors/brands/telegram-org), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #878bc4: 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), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-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 #878bc4, 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), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Graphite and Gopro's brand system put Orange beside #878bc4, as the accent. Seen in: Graphite (https://brandsweets.com/palettes/technical#graphite), Gopro (https://brandsweets.com/colors/brands/gopro-com), Campus (https://brandsweets.com/palettes/friendly#campus), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/orange
- **Peru** #cd853f [harmony, pool: split] — Peru is a split-complement of #878bc4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/peru

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

- On white (#ffffff): 3.22:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #696eb5 (4.67:1); AA: background → #292929 (4.52:1); AAA: text → #4c519a (7.12:1)
- On black (#000000): 6.52:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8e92c7 (7.09:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/878bc4-9e9cc4-df8f4e-241f2d-e9eef1?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: "#878bc4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.