Color
#631d41
#631d41rgb(99, 29, 65)hsl(329, 55%, 25%)oklch(0.354 0.108 352.3)Colors that go with #631d41
Teal, Blue and Copper 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.
Teal #008080
complementaryshippedTeal sits directly opposite #631d41 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #631d41, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #631d41: 4 real palettes, including Bramble and Notion's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #631d41 in 5 real palettes, including Lenovo's brand system and Burger King's brand system, as the supporting colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #631d41: 4 real palettes, including Macaron and Nursery, as the supporting colour.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with #631d41: 4 real palettes, including Resort and Stone, as the supporting colour.
Slate Gray #708090
shipped4 real palettes, including Bookshop and Bloomberg's brand system put Slate Gray beside #631d41, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #631d41: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #631d41
Tints & shades
Harmonies
Contrast
| #631d41 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.78:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.78:1 | 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 #631d41 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
#631d41 reads as warm, dark, luxury. 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 #631d41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/631d41-c49cac-62cb62-2d1f21-f1e9f1?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