# #673ff8

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

## Values

- Hex: `#673ff8`
- RGB: rgb(103, 63, 248)
- HSL: hsl(253, 93%, 61%)
- OKLCH: oklch(0.537 0.255 283.7)
- Relative luminance: 0.1322
- Nearest named color: Meteor Shower (#5533ff, Δ 3.777) — https://brandsweets.com/colors/meteor-shower
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/673ff8

## Tints & shades

- Tints (toward white): #7753f9, #8262f9, #9275fa, #a289fb, #b19dfb, #bdabfc, #ccbffd, #dcd3fd, #e8e1fe, #f7f5ff
- Shades (toward black): #5022f7, #3c09f6, #3508d9, #2e07bb, #2806a2, #210585, #190467, #12034a, #0c0231, #050114

## Harmonies

- Complementary: #d0f83f
- Analogous: #3f73f8, #c43ff8
- Triadic: #f8673f, #3ff867
- Split-complementary: #f8c43f, #73f83f
- Tetradic: #f83f73, #d0f83f, #3ff8c4

## Colors that go with #673ff8

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 #673ff8: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 5 real palettes, including Signal's brand system and Dropbox's brand system put Blue beside #673ff8, as the supporting colour. Seen in: Signal (https://brandsweets.com/colors/brands/signal-org), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #673ff8: 7 real palettes, including Nivea's brand system and Nokia's brand system, as the lead colour. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #673ff8: 4 real palettes, including 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), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #673ff8 in 6 real palettes, including Gemstone and Toyota's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Toyota (https://brandsweets.com/colors/brands/toyota-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #673ff8: 5 real palettes, including Calm's brand system and Render's brand system, as the lead colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Render (https://brandsweets.com/colors/brands/render-com), Kraken (https://brandsweets.com/colors/brands/kraken-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #673ff8: 6 real palettes, including Linkedin's brand system and Chase's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Chase (https://brandsweets.com/colors/brands/chase-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Dairy Queen (https://brandsweets.com/colors/brands/dairyqueen-com). — https://brandsweets.com/colors/denim
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #673ff8 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

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

- On white (#ffffff): 5.76:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #5426f7 (7.01:1)
- On black (#000000): 3.64:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #7b58f9 (4.61:1); AA: background → #e6e6e6 (4.62:1); AAA: text → #9e84fb (7.15:1)

## 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/673ff8-a99cc4-dfb84e-281f2d-e9ebf1?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: "#673ff8" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.