Color
#591d57
#591d57rgb(89, 29, 87)hsl(302, 51%, 23%)oklch(0.348 0.117 329.1)Colors that go with #591d57
Sea Green, Crimson 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
complementaryshippedSea Green sits directly opposite #591d57 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #591d57 in 7 real palettes, including Lenovo's brand system and Marvel's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #591d57: 4 real palettes, including Hinge's brand system and Heinz's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #591d57: 4 real palettes, including Macaron and Sorbet, as the supporting colour.
Tomato #ff6347
shipped4 real palettes, including Golden Hour and Harley-Davidson's brand system put Tomato beside #591d57, as the supporting colour.
Blue #0000ff
shipped3 real palettes, including Sketch's brand system and Tim Hortons's brand system put Blue beside #591d57, as the accent.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #591d57: softer than #000 and cool enough to feel like part of the same palette.
Slate Gray #708090
shipped3 real palettes, including Bloomberg's brand system and Hermès's brand system put Slate Gray beside #591d57, as the accent.
Real palettes that use #591d57
Tints & shades
Harmonies
Contrast
| #591d57 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.08:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.74:1 | 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 #591d57 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
#591d57 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 #591d57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/591d57-c19fbc-91cb62-2d1f27-eee9f1?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