Mushroom
Open in tool →Taupe, oat and a sage accent — the quiet earth palette: almost neutral, with just enough colour to feel alive.
Color
#637e4e
#637e4e
hex
#637e4ergb
rgb(99, 126, 78)hsl
hsl(94, 24%, 40%)oklch
oklch(0.559 0.077 132.3)Closest name: Beyond the Pines (#688049)Relative luminance 0.1812
Colors that go with #637e4e
Charcoal, Medium Purple 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 body-text near-black for #637e4e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Medium Purple #9370db
complementaryshippedMedium Purple sits directly opposite #637e4e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shipped5 real palettes, including Forest Floor and Woodsmoke put Champagne beside #637e4e, as that palette's text colour.
Copper #b87333
shippedDesigners have shipped Copper with #637e4e: 5 real palettes, including Wellness and Riverbed, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #637e4e in 7 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #637e4e: 7 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #637e4e: 4 real palettes, including Spline's brand system and Miro's brand system, as the lead colour.
Peru #cd853f
shipped4 real palettes, including Woodsmoke and Coffee Bar put Peru beside #637e4e, as the lead colour.
Real palettes that use #637e4e
Tints & shades
Harmonies
Contrast
| #637e4e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.54:1 | pass | pass | fail |
|
Aaon black | 4.62:1 | 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 #637e4e 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 #637e4e
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 #637e4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/637e4e-abbea2-5a4edf-1f2d1f-f0f1e9?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