Bakery
Open in tool →Crust browns and butter on a flour-white surface — soft, appetizing, and nothing artificial.
Color
#37251b
#37251b
hex
#37251brgb
rgb(55, 37, 27)hsl
hsl(21, 34%, 16%)oklch
oklch(0.283 0.033 50)Closest name: Ethereal Espresso (#3e2723)Relative luminance 0.0221
Colors that go with #37251b
Charcoal, Sienna 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #37251b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Sienna #a0522d
analogousshippedSienna is #37251b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Slate Blue #6a5acd
triadicshippedSlate Blue completes a triad with #37251b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #37251b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite #37251b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #37251b in 18 real palettes, including McDonald's's brand system and Maple, as the lead colour.
Blue #0000ff
shipped22 real palettes, including Headspace's brand system and Tim Hortons's brand system put Blue beside #37251b, as the accent.
Blue Violet #8a2be2
shippedBlue Violet is paired with #37251b in 6 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Real palettes that use #37251b
Tints & shades
Harmonies
Contrast
| #37251b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 14.55:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.44:1 | 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 #37251b as the background.
Brands using this color
Palettes built around it
Sepia Mono
Open in tool →A single warm brown from espresso to oat — the sepia scale as a working palette, not a filter.
Fonts for this mood
#37251b reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #37251b
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 #37251b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/37251b-c4af9c-62cbbd-2d2a1f-f1e9ea?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