Color
#3f7871
#3f7871rgb(63, 120, 113)hsl(173, 31%, 36%)oklch(0.532 0.061 185.3)Colors that go with #3f7871
Charcoal, Amber 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 #3f7871: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #3f7871 in 4 real palettes, including Lemon Squeezy's brand system and Beach Hut, as the lead colour.
Champagne #f7e7ce
shipped5 real palettes, including Forest Floor and Darkroom put Champagne beside #3f7871, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #3f7871: 5 real palettes, including Intel's brand system and Ink & Paper, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #3f7871: 7 real palettes, including Riverbed and Wellness, as the accent.
Crimson #dc143c
shippedCrimson is paired with #3f7871 in 9 real palettes, including Gemstone and Redfin's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #3f7871: 11 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Sienna #a0522d
split-complementshippedSienna is a split-complement of #3f7871: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #3f7871
Tints & shades
Harmonies
Contrast
| #3f7871 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.08:1 | pass | pass | fail |
|
Aaon black | 4.14:1 | 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 #3f7871 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Point 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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #3f7871 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3f7871-a2bebe-d459a3-1f292d-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