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
#66898f
#66898f
hex
#66898frgb
rgb(102, 137, 143)hsl
hsl(189, 17%, 48%)oklch
oklch(0.606 0.04 209.2)Closest name: Arctic (#648589)Relative luminance 0.227
Colors that go with #66898f
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 #66898f: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #66898f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Champagne #f7e7ce
shipped4 real palettes, including Midnight Luxe and Forest Floor put Champagne beside #66898f, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #66898f: 5 real palettes, including Ink & Paper and Intel's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #66898f in 7 real palettes, including Retro Pop and Diner, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #66898f: 12 real palettes, including Campus and Peacock, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #66898f in 5 real palettes, including Ledger Dark and Noir Beauty, as the lead colour.
Midnight Blue #191970
shipped10 real palettes, including Plaid's brand system and Tide Pool put Midnight Blue beside #66898f, as the supporting colour.
Real palettes that use #66898f
Tints & shades
Harmonies
Contrast
| #66898f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.79:1 | fail | pass | fail | |
Aaon black | 5.54:1 | 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 #66898f 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 #66898f
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 #66898f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/66898f-a2b7be-df4e7e-1f252d-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