Color
#642bf3
#642bf3rgb(100, 43, 243)hsl(257, 89%, 56%)oklch(0.51 0.266 284.9)Colors that go with #642bf3
Charcoal, Royal Blue and Cobalt Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #642bf3: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #642bf3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #642bf3: 7 real palettes, including NHL's brand system and Zillow's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #642bf3 in 4 real palettes, including Gemstone and Coinbase's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #642bf3: 4 real palettes, including Render's brand system and Kraken's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #642bf3: 5 real palettes, including Linkedin's brand system and Pixar's brand system, as the lead colour.
Midnight Blue #191970
shipped7 real palettes, including Kraken's brand system and Discord's brand system put Midnight Blue beside #642bf3, as the lead colour.
Red #ff0000
shippedRed is paired with #642bf3 in 4 real palettes, including Twitch's brand system and native Cybersecurity's brand system, as the accent.
Real palettes that use #642bf3
Tints & shades
Harmonies
Contrast
| #642bf3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.6:1 | pass | pass | fail |
|
Aaon black | 3.18:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #642bf3 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#642bf3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #642bf3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/642bf3-ac9cc4-dfc24e-291f2d-e9ebf1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md