# #5b8ea9

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

## Values

- Hex: `#5b8ea9`
- RGB: rgb(91, 142, 169)
- HSL: hsl(201, 31%, 51%)
- OKLCH: oklch(0.621 0.068 232.5)
- Relative luminance: 0.2443
- Nearest named color: Blue Moon (#3992a8, Δ 3.021) — https://brandsweets.com/colors/blue-moon
- Moods: cool, muted
- Page: https://brandsweets.com/colors/5b8ea9

## Tints & shades

- Tints (toward white): #6c99b2, #79a2b9, #8aaec1, #9bbaca, #abc5d3, #b9ceda, #cadae3, #dae6ec, #e8eff3, #f8fafb
- Shades (toward black): #51809a, #4a758c, #41677c, #38596b, #314e5e, #28404d, #20323c, #17242b, #10191e, #070b0d

## Harmonies

- Complementary: #a9765b
- Analogous: #5ba99d, #5b67a9
- Triadic: #a95b8e, #8ea95b
- Split-complementary: #a95b67, #a99d5b
- Tetradic: #9d5ba9, #a9765b, #67a95b

## Colors that go with #5b8ea9

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 #5b8ea9: 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 #5b8ea9 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 #5b8ea9: 5 real palettes, including Hershey's's brand system and Glacier, as the supporting colour. Seen in: 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), Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #5b8ea9 in 7 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), 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 #5b8ea9: 6 real palettes, including Telegram's brand system and Astro's brand system, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Astro (https://brandsweets.com/colors/brands/astro-build), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #5b8ea9: 13 real palettes, including Dusk and Gopro's brand system, as the lead colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Gopro (https://brandsweets.com/colors/brands/gopro-com), Campus (https://brandsweets.com/palettes/friendly#campus), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #5b8ea9: 4 real palettes, including Honda's brand system and Wendy's's brand system, as the supporting colour. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Newsprint (https://brandsweets.com/palettes/editorial#newsprint), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #5b8ea9 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

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

- On white (#ffffff): 3.57:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4d7b93 (4.6:1); AA: background → #212121 (4.51:1); AAA: text → #3a5c6e (7.15:1)
- On black (#000000): 5.89:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #6f9cb3 (7.08:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/5b8ea9-9cb1c4-df4e62-1f222d-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: "#5b8ea9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.