Color
#684ff8
#684ff8rgb(104, 79, 248)hsl(249, 92%, 64%)oklch(0.559 0.239 282.2)Colors that go with #684ff8
Charcoal, Sea Green 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 #684ff8: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #684ff8 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shippedBlue is paired with #684ff8 in 8 real palettes, including Signal's brand system and Dropbox's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #684ff8 in 6 real palettes, including Nivea's brand system and Behance's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Cornflower Blue #6495ed
shippedCornflower Blue is paired with #684ff8 in 4 real palettes, including Webflow's brand system and NBA's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #684ff8 in 9 real palettes, including Toyota's brand system and Behance's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #684ff8 in 6 real palettes, including Discord's brand system and Lavender Haze, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Red #ff0000
shippedRed is paired with #684ff8 in 5 real palettes, including Twitch's brand system and Rotten Tomatoes's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #684ff8
Tints & shades
Harmonies
Contrast
| #684ff8 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.17:1 | pass | pass | fail |
|
Aaon black | 4.06:1 | 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 #684ff8 as the background.
Brands using this color
Fonts for this mood
#684ff8 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 #684ff8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/684ff8-a79cc4-dfae4e-271f2d-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