Color
#6b4bfb
#6b4bfbrgb(107, 75, 251)hsl(251, 96%, 64%)oklch(0.558 0.246 283.3)Colors that go with #6b4bfb
Charcoal, Amber and 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 #6b4bfb: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #6b4bfb in 4 real palettes, including Mastodon hosted on mastodon.social's brand system and Walmart's brand system, as the accent.
Blue #0000ff
shipped9 real palettes, including Signal's brand system and Dropbox's brand system put Blue beside #6b4bfb, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #6b4bfb: 6 real palettes, including Nivea's brand system and Behance's brand system, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #6b4bfb: 5 real palettes, including Mastodon hosted on mastodon.social's brand system and Roblox's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #6b4bfb in 8 real palettes, including Toyota's brand system and Behance's brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #6b4bfb: 5 real palettes, including Calm's brand system and Render's brand system, as the lead colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #6b4bfb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #6b4bfb
Tints & shades
Harmonies
Contrast
| #6b4bfb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.22:1 | pass | pass | fail |
|
Aaon black | 4.02:1 | 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 #6b4bfb as the background.
Brands using this color
Fonts for this mood
#6b4bfb 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 #6b4bfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/6b4bfb-a89cc4-dfb34e-281f2d-e9ecf1?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