Color
#6f398e
#6f398ergb(111, 57, 142)hsl(278, 43%, 39%)oklch(0.452 0.141 311.3)Colors that go with #6f398e
Denim, Sea Green and Charcoal 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.
Denim #1560bd
shippedDesigners have shipped Denim with #6f398e: 4 real palettes, including Slack's brand system and Hinge's brand system, as the lead colour.
Sea Green #2e8b57
complementarySea Green sits directly opposite #6f398e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #6f398e: softer than #000 and cool enough to feel like part of the same palette.
Taupe #483c32
shippedTaupe is paired with #6f398e in 3 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour.
Teal #008080
triadicshippedTeal completes a triad with #6f398e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Olive Green #808000
split-complementOlive Green is a split-complement of #6f398e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue Violet #8a2be2
shippedBlue Violet is paired with #6f398e in two real palettes: Taco Bell's brand system and Twitch's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #6f398e in two real palettes: Lenovo's brand system and Gemstone, as the supporting colour.
Real palettes that use #6f398e
Tints & shades
Harmonies
Contrast
| #6f398e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.92:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.65:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6f398e as the background.
Brands using this color
Fonts for this mood
#6f398e 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 #6f398e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/6f398e-ba9cc4-bbcb62-2d1f2c-ebe9f1?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