Fintech Trust
Open in tool →Navy signals custody and stability; the green accent is money moving the right way. No red anywhere except errors.
Color
#031f3a
#031f3a
hex
#031f3argb
rgb(3, 31, 58)hsl
hsl(209, 90%, 12%)oklch
oklch(0.235 0.062 250.6)Closest name: Midnight Mirage (#001f3f)Relative luminance 0.013
Colors that go with #031f3a
Charcoal, Crimson and Rust 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 #031f3a: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #031f3a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Rust #b7410e
split-complementshippedRust is a split-complement of #031f3a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #031f3a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Slate Blue #6a5acd
analogousshippedSlate Blue is #031f3a's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is #031f3a's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #031f3a in 18 real palettes, including Southwest Airlines's brand system and Blueprint, as the accent.
Blue #0000ff
shipped22 real palettes, including Monzo's brand system and League of Legends's brand system put Blue beside #031f3a, as the accent.
Real palettes that use #031f3a
Tints & shades
Harmonies
Contrast
| #031f3a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 16.65:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.26:1 | 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 #031f3a as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#031f3a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #031f3a
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 #031f3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/031f3a-9cacc4-df4e4e-1f212d-e9f1f1?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