Color
#519aa4
#519aa4rgb(81, 154, 164)hsl(187, 34%, 48%)oklch(0.643 0.074 207.1)Colors that go with #519aa4
Charcoal, Copper 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #519aa4: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #519aa4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Denim #1560bd
shippedDesigners have shipped Denim with #519aa4: 7 real palettes, including Peacock and Dusk, as the supporting colour.
Midnight Blue #191970
shipped8 real palettes, including Ford's brand system and Tide Pool put Midnight Blue beside #519aa4, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #519aa4: 4 real palettes, including Ink Wash and First Snow, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #519aa4 in 5 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #519aa4 in 20 real palettes, including Still Water and Rain Garden, as that palette's text colour.
Teal #008080
shippedTeal shows up next to #519aa4 in 4 real palettes, including N26's brand system and Alpine, as the supporting colour.
Real palettes that use #519aa4
Tints & shades
Harmonies
Contrast
| #519aa4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.23:1 | fail | pass | fail | |
Aaon black | 6.51:1 | pass | 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 #519aa4 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #519aa4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/519aa4-a2b8be-df4e83-1f262d-e9f1ee?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