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
#558ca5
#558ca5
hex
#558ca5rgb
rgb(85, 140, 165)hsl
hsl(199, 32%, 49%)oklch
oklch(0.612 0.069 228.8)Closest name: Blue Moon (#3992a8)Relative luminance 0.234
Colors that go with #558ca5
Charcoal, Copper and Cobalt Blue 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 #558ca5: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
complementaryshippedCopper sits directly opposite #558ca5 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #558ca5 in 6 real palettes, including Hershey's's brand system and Glacier, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #558ca5 in 6 real palettes, including Retro Pop and Redfin's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #558ca5 in 4 real palettes, including Deep Water and Astro's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #558ca5 in 12 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 #558ca5 in 5 real palettes, including Ledger Dark and Noir Beauty, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Light Sea Green #20b2aa
shippedLight Sea Green is paired with #558ca5 in 4 real palettes, including Ford's brand system and Perplexity's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #558ca5
Tints & shades
Harmonies
Contrast
| #558ca5 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.7:1 | fail | pass | fail | |
Aaon black | 5.68:1 | 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 #558ca5 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 #558ca5
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 #558ca5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/558ca5-9cb3c4-df4e66-1f232d-e9f1f0?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