Color
#515d58
#515d58rgb(81, 93, 88)hsl(155, 7%, 34%)oklch(0.466 0.017 168.6)Colors that go with #515d58
Cadet Blue, Champagne 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.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #515d58: 4 real palettes, including Dusk and Alpine, as the supporting colour.
Champagne #f7e7ce
shipped5 real palettes, including Darkroom and BrandSweets's brand system put Champagne beside #515d58, as the surface under it.
Copper #b87333
shippedDesigners have shipped Copper with #515d58: 5 real palettes, including Desert Road and Clay & Linen, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #515d58 in 6 real palettes, including Codecademy's brand system and Gemstone, as the accent.
Dark Goldenrod #b8860b
shipped4 real palettes, including Cider and Rolex's brand system put Dark Goldenrod beside #515d58, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #515d58: 10 real palettes, including HP's brand system and The New York Times's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #515d58 in 6 real palettes, including Fireside and Mid-Century, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the near-white surface #515d58 was made for — maximum legibility with no colour cast to argue with.
Real palettes that use #515d58
Tints & shades
Harmonies
Contrast
| #515d58 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.87:1 | pass | pass | fail |
|
Aaon black | 3.06:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #515d58 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
#515d58 reads as neutral, minimal. 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 #515d58 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/515d58-a2beb0-c859d4-1f2d2b-eaf1e9?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