# #a581bb

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

## Values

- Hex: `#a581bb`
- RGB: rgb(165, 129, 187)
- HSL: hsl(277, 30%, 62%)
- OKLCH: oklch(0.658 0.093 312.2)
- Relative luminance: 0.2729
- Nearest named color: Heart Potion (#a97fb1, Δ 1.557) — https://brandsweets.com/colors/heart-potion
- Moods: cool, muted
- Page: https://brandsweets.com/colors/a581bb

## Tints & shades

- Tints (toward white): #ae8ec2, #b598c8, #bfa5cf, #c6afd4, #d0bddb, #d9cae2, #e0d4e8, #eae1ef, #f1ebf4, #faf8fb
- Shades (toward black): #976db0, #8859a6, #7b5095, #6a4681, #5a3b6d, #4a305a, #392546, #2c1d35, #1b1221, #0b070d

## Harmonies

- Complementary: #97bb81
- Analogous: #8881bb, #bb81b4
- Triadic: #bba581, #81bba5
- Split-complementary: #b4bb81, #81bb88
- Tetradic: #bb8881, #97bb81, #81b4bb

## Colors that go with #a581bb

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 #a581bb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), 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). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: complementary] — Medium Sea Green sits directly opposite #a581bb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/mediumseagreen
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #a581bb: 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), Crypto.com (https://brandsweets.com/colors/brands/crypto-com), Stone (https://brandsweets.com/palettes/neutral#stone). — https://brandsweets.com/colors/powderblue
- **Taupe** #483c32 [pool] — Taupe is paired with #a581bb in 9 real palettes, including Dusk and Obsidian's brand system, as the text colour against it. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/taupe
- **Amber** #ffbf00 [pool] — Amber is paired with #a581bb in 3 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). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 3 real palettes, including Canva's brand system and Spotify's brand system put Blue beside #a581bb, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #a581bb: 3 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), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #a581bb in 3 real palettes, including Ledger Dark and Obsidian's brand system, as the accent. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Scale AI (https://brandsweets.com/colors/brands/scale-com). — https://brandsweets.com/colors/emerald-green

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

- On white (#ffffff): 3.25:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9063ab (4.61:1); AA: background → #262626 (4.65:1); AAA: text → #704988 (7.01:1)
- On black (#000000): 6.46:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ac8bc1 (7.22:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a581bb-b99cc4-bdcb62-2d1f2c-eae9f1?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: "#a581bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.