Color
#51315e
#51315ergb(81, 49, 94)hsl(283, 31%, 28%)oklch(0.372 0.084 315.6)Colors that go with #51315e
Sea Green, Blue 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
complementaryshippedSea Green sits directly opposite #51315e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped7 real palettes, including Dunkin''s brand system and Alaska Airlines's brand system put Blue beside #51315e, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #51315e in 10 real palettes, including Marvel's brand system and Frost & Ember, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #51315e: 4 real palettes, including Lamborghini's brand system and Kraken's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #51315e: 12 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #51315e in 4 real palettes, including Sapphire & Gold and Disney's brand system, as the supporting colour.
Midnight Blue #191970
shipped8 real palettes, including Microsoft's brand system and Tide Pool put Midnight Blue beside #51315e, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #51315e: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #51315e
Tints & shades
Harmonies
Contrast
| #51315e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.76:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.95:1 | 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 #51315e 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
#51315e reads as cool, muted, dark. 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 #51315e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51315e-bb9fc1-b2cb62-2d1f2b-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