Color
#40370d
#40370drgb(64, 55, 13)hsl(49, 66%, 15%)oklch(0.337 0.06 96.8)Colors that go with #40370d
Royal Blue, Sienna and Steel 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
complementaryshippedRoyal Blue sits directly opposite #40370d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sienna #a0522d
analogousshippedSienna is #40370d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #40370d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
triadicshippedTeal completes a triad with #40370d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #40370d in 6 real palettes, including McDonald's's brand system and Trailhead, as the lead colour.
Blue #0000ff
shipped9 real palettes, including Dunkin''s brand system and Minecraft's brand system put Blue beside #40370d, as the supporting colour.
Blush Pink #e8b4b8
shipped5 real palettes, including Garden Wedding and Nursery put Blush Pink beside #40370d, as the supporting colour.
Cream #fffdd0
neutralCream is the surface #40370d wants: a warm off-white that shares its undertone, so #40370d reads softer on it than on pure white.
Real palettes that use #40370d
Tints & shades
Harmonies
Contrast
| #40370d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.86:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.77:1 | 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 #40370d 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
#40370d reads as warm, vivid, dark. 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 #40370d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/40370d-c4c19c-4eaedf-2a2d1f-f1ece9?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