Undergrowth
Open in tool →Fern and lichen with a fungus orange on a fir-black — the forest floor at dusk, as a dark theme.
Color
#636751
#636751
hex
#636751rgb
rgb(99, 103, 81)hsl
hsl(71, 12%, 36%)oklch
oklch(0.504 0.034 116)Closest name: Italian Basil (#5f6957)Relative luminance 0.1295
Colors that go with #636751
Charcoal, Slate Blue 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 #636751: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Slate Blue #6a5acd
complementaryshippedSlate Blue sits directly opposite #636751 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shippedChampagne is paired with #636751 in 6 real palettes, including BrandSweets's brand system and Forest Floor — a combination designers have actually shipped, not a computed rotation.
Copper #b87333
shippedCopper is paired with #636751 in 6 real palettes, including Clay & Linen and Riverbed, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #636751 in 6 real palettes, including Gemstone and Five Guys's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #636751 in 7 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #636751 in 5 real palettes, including Mid-Century and Harvest, as the accent — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #636751 in 4 real palettes, including Undergrowth and Indigo SaaS, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #636751
Tints & shades
Harmonies
Contrast
| #636751 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.85:1 | pass | pass | fail |
|
Aaon black | 3.59:1 | 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 #636751 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 #636751
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 #636751 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/636751-b6bea2-4e7adf-252d1f-f1efe9?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