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
#587e78
#587e78
hex
#587e78rgb
rgb(88, 126, 120)hsl
hsl(171, 18%, 42%)oklch
oklch(0.563 0.044 183.9)Closest name: Ecological (#677f70)Relative luminance 0.1835
Colors that go with #587e78
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 #587e78: softer than #000 and cool enough to feel like part of the same palette.
Champagne #f7e7ce
shipped7 real palettes, including Forest Floor and Coffee Bar put Champagne beside #587e78, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #587e78: 5 real palettes, including Ink & Paper and Intel's brand system, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #587e78: 7 real palettes, including Riverbed and Wellness, as the accent.
Crimson #dc143c
shippedCrimson is paired with #587e78 in 8 real palettes, including Redfin's brand system and Retro Pop, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #587e78: 11 real palettes, including Campus and Intel's brand system, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #587e78: 4 real palettes, including Studio Grey and Spline's brand system, as the accent.
Rose Gold #b76e79
complementaryRose Gold sits directly opposite #587e78 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 #587e78
Tints & shades
Harmonies
Contrast
| #587e78 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.5:1 | fail | pass | fail | |
Aaon black | 4.67:1 | 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 #587e78 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 #587e78
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 #587e78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/587e78-a2bebd-d459a7-1f292d-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