Color
#3f431e
#3f431ergb(63, 67, 30)hsl(66, 38%, 19%)oklch(0.37 0.057 114.3)Colors that go with #3f431e
Royal Blue, Sea Green and Slate Blue 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.
Royal Blue #4169e1
split-complementshippedRoyal Blue is a split-complement of #3f431e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sea Green #2e8b57
analogousshippedSea Green is #3f431e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Slate Blue #6a5acd
complementaryshippedSlate Blue sits directly opposite #3f431e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped8 real palettes, including Dunkin''s brand system and Jeep's brand system put Blue beside #3f431e, as the supporting colour.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #3f431e, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #3f431e: 7 real palettes, including Notion's brand system and Bakery.
Crimson #dc143c
shippedCrimson is paired with #3f431e in 10 real palettes, including Dunkin''s brand system and MAC Cosmetics's brand system, as the accent.
Cream #fffdd0
neutralCream is the surface #3f431e wants: a warm off-white that shares its undertone, so #3f431e reads softer on it than on pure white.
Real palettes that use #3f431e
Tints & shades
Harmonies
Contrast
| #3f431e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.33:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.03:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f431e as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#3f431e reads as dark, luxury, bold. The font library is tagged with the same vocabulary:
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 #3f431e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3f431e-b8bea2-4e86df-262d1f-f1eee9?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