Riverbed
Open in tool →Wet-stone green and pebble grey with a copper accent — an earth palette that leans cool, for outdoor and wellness.
Color
#557770
#557770
hex
#557770rgb
rgb(85, 119, 112)hsl
hsl(168, 17%, 40%)oklch
oklch(0.541 0.04 180.5)Closest name: Green Sleeves (#39766c)Relative luminance 0.1629
Colors that go with #557770
Charcoal, Champagne 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 #557770: softer than #000 and cool enough to feel like part of the same palette.
Champagne #f7e7ce
shipped6 real palettes, including Forest Floor and BrandSweets's brand system put Champagne beside #557770, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #557770: 4 real palettes, including Ink & Paper and Intel's brand system, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #557770: 7 real palettes, including Riverbed and Wellness, as the accent.
Crimson #dc143c
shippedCrimson is paired with #557770 in 8 real palettes, including Gemstone and Redfin's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #557770: 10 real palettes, including Campus and Intel's brand system, as the lead colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #557770: 5 real palettes, including Newsprint and Wendy's's brand system, as the lead colour.
Rose Gold #b76e79
complementaryRose Gold sits directly opposite #557770 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #557770
Tints & shades
Harmonies
Contrast
| #557770 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.93:1 | pass | pass | fail |
|
Aaon black | 4.26:1 | 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 #557770 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 #557770
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 #557770 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/557770-a2bebc-d459ad-1f2a2d-e9f1ec?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