Color
#7f51db
#7f51dbrgb(127, 81, 219)hsl(260, 66%, 59%)oklch(0.559 0.201 294.3)Colors that go with #7f51db
Sea Green, Charcoal and Crimson 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.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #7f51db: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #7f51db: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #7f51db in 4 real palettes, including Gemstone and Marvel's brand system, as the accent.
Midnight Blue #191970
shipped6 real palettes, including Lavender Haze and Discord's brand system put Midnight Blue beside #7f51db, as that palette's text colour.
Taupe #483c32
shippedTaupe is paired with #7f51db in 5 real palettes, including Obsidian's brand system and Superhuman's brand system, as that palette's text colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #7f51db on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #7f51db in 3 real palettes, including Mastodon hosted on mastodon.social's brand system and Wikipedia's brand system, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #7f51db: 3 real palettes, including Mastodon hosted on mastodon.social's brand system and Roblox's brand system, as the supporting colour.
Real palettes that use #7f51db
Tints & shades
Harmonies
Contrast
| #7f51db as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.12:1 | pass | pass | fail |
|
Aaon black | 4.1:1 | 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 #7f51db 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
#7f51db 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 #7f51db and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/7f51db-ae9cc4-dfc94e-2a1f2d-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