Rain Garden
Open in tool →Wet-leaf teal and moss with a soft peach — an overcast spring, calmer than the bright version and better for long reading.
Color
#558d91
#558d91
hex
#558d91rgb
rgb(85, 141, 145)hsl
hsl(184, 26%, 45%)oklch
oklch(0.606 0.059 201.6)Closest name: Arctic (#648589)Relative luminance 0.2303
Colors that go with #558d91
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 #558d91: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #558d91: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #558d91: 5 real palettes, including Ink & Paper and Intel's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #558d91 in 8 real palettes, including Diner and Redfin's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #558d91: 12 real palettes, including Peacock and Campus, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #558d91 in 5 real palettes, including Ledger Dark and Noir Beauty, as the lead colour.
Midnight Blue #191970
shipped9 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #558d91, as that palette's text colour.
Peru #cd853f
shipped5 real palettes, including Estate and Kiln put Peru beside #558d91, as the lead colour.
Real palettes that use #558d91
Tints & shades
Harmonies
Contrast
| #558d91 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.75:1 | fail | pass | fail | |
Aaon black | 5.61:1 | 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 #558d91 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 #558d91
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 #558d91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/558d91-a2b9be-df4e8a-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