# #803fd5

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

## Values

- Hex: `#803fd5`
- RGB: rgb(128, 63, 213)
- HSL: hsl(266, 64%, 54%)
- OKLCH: oklch(0.531 0.216 298.5)
- Relative luminance: 0.1295
- Nearest named color: Hokkaido Lavender (#7736d9, Δ 2.477) — https://brandsweets.com/colors/hokkaido-lavender
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/803fd5

## Tints & shades

- Tints (toward white): #8b4fd8, #9964dd, #a475e1, #b28ae5, #bd9be9, #c8abed, #d5c0f1, #e1d1f5, #eee6f9, #f9f7fd
- Shades (toward black): #722dcd, #6728b8, #5b24a3, #4f1f8e, #441b79, #381664, #2c114f, #210d3b, #150826, #090411

## Harmonies

- Complementary: #94d53f
- Analogous: #3f49d5, #cb3fd5
- Triadic: #d5803f, #3fd580
- Split-complementary: #d5cb3f, #49d53f
- Tetradic: #d53f49, #94d53f, #3fd5cb

## Colors that go with #803fd5

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Midnight Blue** #191970 [pool] — 4 real palettes, including Lavender Haze and Kraken's brand system put Midnight Blue beside #803fd5, as that palette's text colour. Seen in: Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Kraken (https://brandsweets.com/colors/brands/kraken-com), Discord (https://brandsweets.com/colors/brands/discord), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #803fd5's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Stripe (https://brandsweets.com/colors/brands/stripe), Wayfair (https://brandsweets.com/colors/brands/wayfair-com). — https://brandsweets.com/colors/royalblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #803fd5 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/olive
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #803fd5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #803fd5: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #803fd5 in 3 real palettes, including Gemstone and Marvel's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Marvel (https://brandsweets.com/colors/brands/marvel-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #803fd5: 3 real palettes, including Render's brand system and Calm's brand system, as the supporting colour. Seen in: Render (https://brandsweets.com/colors/brands/render-com), Calm (https://brandsweets.com/colors/brands/calm-com), Kraken (https://brandsweets.com/colors/brands/kraken-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #803fd5: 3 real palettes, including Linkedin's brand system and Peacock, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 5.85:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #722dcd (7.07:1)
- On black (#000000): 3.59:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9058da (4.59:1); AA: background → #e3e3e3 (4.56:1); AAA: text → #ac82e3 (7.06:1)

## Brands using this color

- **Linkedin** — accent #8344cc (Δ 1.822) — https://brandsweets.com/colors/brands/linkedin-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- 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/803fd5-b29cc4-dfd74e-2b1f2d-e9eaf1?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: "#803fd5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.