# #803bc4

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

## Values

- Hex: `#803bc4`
- RGB: rgb(128, 59, 196)
- HSL: hsl(270, 54%, 50%)
- OKLCH: oklch(0.513 0.203 302.8)
- Relative luminance: 0.117
- Nearest named color: Lilac Spring (#8822cc, Δ 3.717) — https://brandsweets.com/colors/lilac-spring
- Moods: cool, modern
- Page: https://brandsweets.com/colors/803bc4

## Tints & shades

- Tints (toward white): #8c4eca, #9962d0, #a372d5, #b085db, #bd99e1, #c9ade6, #d6c0ec, #e0d0f1, #ede4f7, #faf7fd
- Shades (toward black): #7335b1, #6930a1, #5c2a8d, #52267e, #45206a, #381a56, #2e1547, #210f33, #170b23, #0a0510

## Harmonies

- Complementary: #80c43b
- Analogous: #3b3bc4, #c43bc4
- Triadic: #c4803b, #3bc480
- Split-complementary: #c4c43b, #3bc43b
- Tetradic: #c43b3b, #80c43b, #3bc4c4

## Colors that go with #803bc4

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

- **Denim** #1560bd [pool] — Designers have shipped Denim with #803bc4: 4 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), Slack (https://brandsweets.com/colors/brands/slack-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #803bc4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Stripe (https://brandsweets.com/colors/brands/stripe). — https://brandsweets.com/colors/royalblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #803bc4 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 #803bc4: 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 #803bc4: 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 #803bc4 in 3 real palettes, including Gemstone and Wells Fargo's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #803bc4: 3 real palettes, including Kraken's brand system and Calm's brand system, as the accent. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Calm (https://brandsweets.com/colors/brands/calm-com), Render (https://brandsweets.com/colors/brands/render-com). — https://brandsweets.com/colors/deepskyblue
- **Medium Slate Blue** #7b68ee [pool] — Medium Slate Blue shows up next to #803bc4 in 3 real palettes, including ClickUp's brand system and monday.com's brand system, as the supporting colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), monday.com (https://brandsweets.com/colors/brands/monday-com), Linear (https://brandsweets.com/colors/brands/linear). — https://brandsweets.com/colors/mediumslateblue

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

- On white (#ffffff): 6.29:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7536b5 (7.12:1)
- On black (#000000): 3.34:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #945ace (4.61:1); AA: background → #dbdbdb (4.54:1); AAA: text → #b085db (7.22:1)

## 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/803bc4-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: "#803bc4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.