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
#588d8b
#588d8b
hex
#588d8brgb
rgb(88, 141, 139)hsl
hsl(178, 23%, 45%)oklch
oklch(0.606 0.057 192.7)Closest name: Arctic (#648589)Relative luminance 0.2299
Colors that go with #588d8b
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 #588d8b: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #588d8b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Champagne #f7e7ce
shipped4 real palettes, including Forest Floor and Midnight Luxe put Champagne beside #588d8b, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #588d8b: 4 real palettes, including Intel's brand system and Ink & Paper, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #588d8b in 8 real palettes, including Diner and Redfin's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #588d8b: 12 real palettes, including Peacock and Campus, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #588d8b in 5 real palettes, including Noir Beauty and Ledger Dark, as the lead colour.
Midnight Blue #191970
shipped9 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #588d8b, as that palette's text colour.
Real palettes that use #588d8b
Tints & shades
Harmonies
Contrast
| #588d8b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.75:1 | fail | pass | fail | |
Aaon black | 5.6:1 | 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 #588d8b 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 #588d8b
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 #588d8b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/588d8b-a2bcbe-d45999-1f282d-e9f1ed?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