# #813ef4

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

## Values

- Hex: `#813ef4`
- RGB: rgb(129, 62, 244)
- HSL: hsl(262, 89%, 60%)
- OKLCH: oklch(0.557 0.25 293.2)
- Relative luminance: 0.1464
- Nearest named color: Candy Grape Fizz (#7755ee, Δ 4.189) — https://brandsweets.com/colors/candy-grape-fizz
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/813ef4

## Tints & shades

- Tints (toward white): #8d51f5, #9a65f6, #a373f7, #b087f8, #bd9af9, #c9adfa, #d6c0fb, #dfcffc, #ece2fd, #f9f5fe
- Shades (toward black): #6e21f2, #5f0eec, #540ccf, #4a0bb7, #3e099a, #33077d, #290665, #1d0448, #130330, #080113

## Harmonies

- Complementary: #b1f43e
- Analogous: #3e56f4, #dc3ef4
- Triadic: #f4813e, #3ef481
- Split-complementary: #f4dc3e, #56f43e
- Tetradic: #f43e56, #b1f43e, #3ef4dc

## Colors that go with #813ef4

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

- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #813ef4 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
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #813ef4: 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
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Lavender Haze and Discord's brand system put Midnight Blue beside #813ef4, as that palette's text colour. Seen in: Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Discord (https://brandsweets.com/colors/brands/discord), Kraken (https://brandsweets.com/colors/brands/kraken-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #813ef4'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). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #813ef4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Stripe (https://brandsweets.com/colors/brands/stripe), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #813ef4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/forestgreen
- **Charcoal** #36454f [role] — Charcoal is the text near-black for #813ef4: softer than #000 and cool enough to feel like part of the same palette. — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #813ef4: two real palettes: Mastodon hosted on mastodon.social's brand system and Roblox's brand system, as the supporting colour. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 5.35:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #6413f1 (7.23:1)
- On black (#000000): 3.93:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #8d51f5 (4.63:1); AA: background → #ededed (4.57:1); AAA: text → #ad82f8 (7.33:1)

## Brands using this color

- **Fly.io** — primary #7c3aed (Δ 1.575) — https://brandsweets.com/colors/brands/fly-io
- **Fly.io** — secondary #7c3aed (Δ 1.575) — https://brandsweets.com/colors/brands/fly-io

## Curated palettes containing it

- **Circuit** (technical, vivid, bold) — #7c3aed, #0a0a0a, #06b6d4, #ffffff — Violet plus cyan is the current AI-product signal — pair it with pure black type to keep it from going candy. — tool: https://brandsweets.com/palettes/new/7c3aed-0a0a0a-06b6d4-ffffff — collection: https://brandsweets.com/palettes/technical

## 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/813ef4-af9cc4-dfce4e-2a1f2d-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: "#813ef4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.