Color
#631d57
#631d57rgb(99, 29, 87)hsl(310, 55%, 25%)oklch(0.364 0.124 335.4)Colors that go with #631d57
Sea Green, Cream and Denim 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
complementarySea Green sits directly opposite #631d57 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cream #fffdd0
neutralshippedCream is the surface #631d57 wants: a warm off-white that shares its undertone, so #631d57 reads softer on it than on pure white.
Denim #1560bd
shippedDesigners have shipped Denim with #631d57: 3 real palettes, including Hinge's brand system and Heinz's brand system, as the accent.
Tomato #ff6347
shipped3 real palettes, including Golden Hour and Harley-Davidson's brand system put Tomato beside #631d57, as the supporting colour.
Teal #008080
split-complementTeal is a split-complement of #631d57: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Olive Green #808000
split-complementOlive Green is a split-complement of #631d57: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #631d57: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Mauve #e0b0ff
shippedMauve shows up next to #631d57 in two real palettes: Ledger's brand system and Lavender Haze, as the accent.
Real palettes that use #631d57
Tints & shades
Harmonies
Contrast
| #631d57 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.39:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.84:1 | 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 #631d57 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
#631d57 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 #631d57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/631d57-c19fb7-83cb62-2d1f25-efe9f1?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