# #a173b5

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

## Values

- Hex: `#a173b5`
- RGB: rgb(161, 115, 181)
- HSL: hsl(282, 31%, 58%)
- OKLCH: oklch(0.626 0.109 315.2)
- Relative luminance: 0.2317
- Nearest named color: Crown Jewels (#946dad, Δ 2.93) — https://brandsweets.com/colors/crown-jewels
- Moods: cool, muted
- Page: https://brandsweets.com/colors/a173b5

## Tints & shades

- Tints (toward white): #aa80bc, #b38dc3, #bc9bca, #c5a8d1, #ceb6d8, #d7c3df, #e0d0e6, #e9deed, #f2ebf4, #fbf8fb
- Shades (toward black): #9662ac, #87539d, #784a8c, #673f78, #593768, #4b2e57, #392343, #2b1a32, #1a101e, #0b070d

## Harmonies

- Complementary: #87b573
- Analogous: #8073b5, #b573a8
- Triadic: #b5a173, #73b5a1
- Split-complementary: #a8b573, #73b580
- Tetradic: #b58073, #87b573, #73a8b5

## Colors that go with #a173b5

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 #a173b5: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), 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
- **Taupe** #483c32 [pool] — Taupe is paired with #a173b5 in 6 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), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Loom (https://brandsweets.com/colors/brands/loom-com). — https://brandsweets.com/colors/taupe
- **Olive Drab** #6b8e23 [harmony: complementary] — Olive Drab sits directly opposite #a173b5 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/olivedrab
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #a173b5 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Medium Slate Blue** #7b68ee [pool] — Medium Slate Blue shows up next to #a173b5 in 3 real palettes, including Mastodon hosted on mastodon.social's brand system and Obsidian's brand system, as the lead colour. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Linear (https://brandsweets.com/colors/brands/linear). — https://brandsweets.com/colors/mediumslateblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #a173b5 in 3 real palettes, including Sephora's brand system and Loom's brand system, as the supporting colour. Seen in: Sephora (https://brandsweets.com/colors/brands/sephora-com), Loom (https://brandsweets.com/colors/brands/loom-com), Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace). — https://brandsweets.com/colors/royalblue
- **Cadet Blue** #5f9ea0 [harmony: split] — Cadet Blue is a split-complement of #a173b5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/cadetblue
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #a173b5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 3.73:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9662ac (4.53:1); AA: background → #1c1c1c (4.57:1); AAA: text → #734686 (7.12:1)
- On black (#000000): 5.63:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #af87c0 (7.05:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a173b5-ba9fc1-b4cb62-2d1f2b-ebe9f1?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: "#a173b5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.