Still Water
Open in tool →Dusty teal and mist with a sand accent — low chroma, low contrast between colours, high contrast for text: the recipe for calm.
Color
#558591
#558591
hex
#558591rgb
rgb(85, 133, 145)hsl
hsl(192, 26%, 45%)oklch
oklch(0.587 0.055 215.3)Closest name: Arctic (#648589)Relative luminance 0.2075
Colors that go with #558591
Charcoal, Copper and Champagne 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 #558591: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #558591: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Champagne #f7e7ce
shippedChampagne is paired with #558591 in 4 real palettes, including Forest Floor and Midnight Luxe, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #558591 in 5 real palettes, including Retro Pop and Diner, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #558591 in 4 real palettes, including Campus and Peacock, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #558591 in 5 real palettes, including Ledger Dark and Noir Beauty, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #558591 in 4 real palettes, including Plaid's brand system and Tide Pool, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Peru #cd853f
shippedPeru is paired with #558591 in 6 real palettes, including Mid-Century and Estate, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #558591
Tints & shades
Harmonies
Contrast
| #558591 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.08:1 | fail | pass | fail | |
Aaon black | 5.15:1 | 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 #558591 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
mcpConnect your agent — build around #558591
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #558591 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/558591-a2b5be-df4e77-1f242d-e9f1ef?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