Color
#6c40bf
#6c40bfrgb(108, 64, 191)hsl(261, 50%, 50%)oklch(0.494 0.188 294.4)Colors that go with #6c40bf
Charcoal, Royal Blue and Sea Green 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 #6c40bf: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #6c40bf's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #6c40bf: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #6c40bf: 4 real palettes, including Coca-Cola's brand system and Blue Mono, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #6c40bf in 7 real palettes, including Gemstone and Wells Fargo's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #6c40bf: 4 real palettes, including Linkedin's brand system and Slack's brand system, as the lead colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #6c40bf: 4 real palettes, including Datadog's brand system and Campbell's's brand system, as the accent.
Medium Slate Blue #7b68ee
shippedMedium Slate Blue shows up next to #6c40bf in 4 real palettes, including Linear's brand system and ClickUp's brand system, as the accent.
Real palettes that use #6c40bf
Tints & shades
Harmonies
Contrast
| #6c40bf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.72:1 | pass | pass | fail |
|
Aaon black | 3.12:1 | 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 #6c40bf 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
#6c40bf reads as cool, modern. 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 #6c40bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/6c40bf-af9cc4-dfcb4e-2a1f2d-e9eaf1?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