# #a581ca

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

## Values

- Hex: `#a581ca`
- RGB: rgb(165, 129, 202)
- HSL: hsl(270, 41%, 65%)
- OKLCH: oklch(0.665 0.112 306.2)
- Relative luminance: 0.2796
- Nearest named color: Petrified Purple (#9c87c1, Δ 2.653) — https://brandsweets.com/colors/petrified-purple
- Moods: cool, modern
- Page: https://brandsweets.com/colors/a581ca

## Tints & shades

- Tints (toward white): #ad8ccf, #b89ad5, #bfa5d9, #c7b0de, #d1bee4, #d9c9e8, #e0d4ed, #e8dff1, #f2edf7, #faf8fc
- Shades (toward black): #966cc1, #8756b8, #7847a9, #693e93, #59357e, #472a65, #38214f, #29183a, #1a0f24, #0a060e

## Harmonies

- Complementary: #a6ca81
- Analogous: #8181ca, #ca81ca
- Triadic: #caa681, #81caa6
- Split-complementary: #caca81, #81ca81
- Tetradic: #ca8181, #a6ca81, #81caca

## Colors that go with #a581ca

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 #a581ca: 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 #a581ca 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
- **Taupe** #483c32 [pool] — Taupe is paired with #a581ca in 5 real palettes, including Obsidian's brand system and Dusk, as the text colour against it. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Dusk (https://brandsweets.com/palettes/cool#dusk), Loom (https://brandsweets.com/colors/brands/loom-com), Retool (https://brandsweets.com/colors/brands/retool-com). — https://brandsweets.com/colors/taupe
- **Amber** #ffbf00 [pool] — Amber is paired with #a581ca in 3 real palettes, including Blueprint and Mastodon hosted on mastodon.social's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 3 real palettes, including Canva's brand system and Spotify's brand system put Blue beside #a581ca, 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
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #a581ca in 3 real palettes, including Obsidian's brand system and Ledger Dark, as the accent. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Supabase (https://brandsweets.com/colors/brands/supabase). — https://brandsweets.com/colors/emerald-green
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #a581ca in 3 real palettes, including Ledger Dark and Open House, as the lead colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Open House (https://brandsweets.com/palettes/clean#open-house), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Plaid's brand system and Open House put Midnight Blue beside #a581ca, 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). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 3.19:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #8f61bd (4.55:1); AA: background → #292929 (4.57:1); AAA: text → #70429e (7.09:1)
- On black (#000000): 6.59:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ab88cd (7.13:1)

## Fonts for this mood

- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a581ca-b59cc4-c9cb62-2c1f2d-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: "#a581ca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.